drivers/net/wireless/iwlwifi/iwl-debugfs.c

   1 /******************************************************************************
   2  *
   3  * GPL LICENSE SUMMARY
   4  *
   5  * Copyright(c) 2008 - 2010 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of version 2 of the GNU General Public License as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  19  * USA
  20  *
  21  * The full GNU General Public License is included in this distribution
  22  * in the file called LICENSE.GPL.
  23  *
  24  * Contact Information:
  25  *  Intel Linux Wireless <ilw@linux.intel.com>
  26  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  27  *****************************************************************************/
  28
  29 #include <linux/slab.h>
  30 #include <linux/kernel.h>
  31 #include <linux/module.h>
  32 #include <linux/debugfs.h>
  33
  34 #include <linux/ieee80211.h>
  35 #include <net/mac80211.h>
  36
  37
  38 #include "iwl-dev.h"
  39 #include "iwl-debug.h"
  40 #include "iwl-core.h"
  41 #include "iwl-io.h"
  42 #include "iwl-calib.h"
  43
  44 /* create and remove of files */
  45 #define DEBUGFS_ADD_FILE(name, parent, mode) do {                       \
  46         if (!debugfs_create_file(#name, mode, parent, priv,             \
  47                                  &iwl_dbgfs_##name##_ops))              \
  48                 goto err;                                               \
  49 } while (0)
  50
  51 #define DEBUGFS_ADD_BOOL(name, parent, ptr) do {                        \
  52         struct dentry *__tmp;                                           \
  53         __tmp = debugfs_create_bool(#name, S_IWUSR | S_IRUSR,           \
  54                                     parent, ptr);                       \
  55         if (IS_ERR(__tmp) || !__tmp)                                    \
  56                 goto err;                                               \
  57 } while (0)
  58
  59 #define DEBUGFS_ADD_X32(name, parent, ptr) do {                         \
  60         struct dentry *__tmp;                                           \
  61         __tmp = debugfs_create_x32(#name, S_IWUSR | S_IRUSR,            \
  62                                    parent, ptr);                        \
  63         if (IS_ERR(__tmp) || !__tmp)                                    \
  64                 goto err;                                               \
  65 } while (0)
  66
  67 /* file operation */
  68 #define DEBUGFS_READ_FUNC(name)                                         \
  69 static ssize_t iwl_dbgfs_##name##_read(struct file *file,               \
  70                                         char __user *user_buf,          \
  71                                         size_t count, loff_t *ppos);
  72
  73 #define DEBUGFS_WRITE_FUNC(name)                                        \
  74 static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
  75                                         const char __user *user_buf,    \
  76                                         size_t count, loff_t *ppos);
  77
  78
  79 static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
  80 {
  81         file->private_data = inode->i_private;
  82         return 0;
  83 }
  84
  85 #define DEBUGFS_READ_FILE_OPS(name)                                     \
  86         DEBUGFS_READ_FUNC(name);                                        \
  87 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  88         .read = iwl_dbgfs_##name##_read,                                \
  89         .open = iwl_dbgfs_open_file_generic,                            \
  90 };
  91
  92 #define DEBUGFS_WRITE_FILE_OPS(name)                                    \
  93         DEBUGFS_WRITE_FUNC(name);                                       \
  94 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
  95         .write = iwl_dbgfs_##name##_write,                              \
  96         .open = iwl_dbgfs_open_file_generic,                            \
  97 };
  98
  99
 100 #define DEBUGFS_READ_WRITE_FILE_OPS(name)                               \
 101         DEBUGFS_READ_FUNC(name);                                        \
 102         DEBUGFS_WRITE_FUNC(name);                                       \
 103 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 104         .write = iwl_dbgfs_##name##_write,                              \
 105         .read = iwl_dbgfs_##name##_read,                                \
 106         .open = iwl_dbgfs_open_file_generic,                            \
 107 };
 108
 109
 110 static ssize_t iwl_dbgfs_tx_statistics_read(struct file *file,
 111                                                 char __user *user_buf,
 112                                                 size_t count, loff_t *ppos) {
 113
 114         struct iwl_priv *priv = file->private_data;
 115         char *buf;
 116         int pos = 0;
 117
 118         int cnt;
 119         ssize_t ret;
 120         const size_t bufsz = 100 +
 121                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 122         buf = kzalloc(bufsz, GFP_KERNEL);
 123         if (!buf)
 124                 return -ENOMEM;
 125         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 126         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 127                 pos += scnprintf(buf + pos, bufsz - pos,
 128                                  "\t%25s\t\t: %u\n",
 129                                  get_mgmt_string(cnt),
 130                                  priv->tx_stats.mgmt[cnt]);
 131         }
 132         pos += scnprintf(buf + pos, bufsz - pos, "Control\n");
 133         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 134                 pos += scnprintf(buf + pos, bufsz - pos,
 135                                  "\t%25s\t\t: %u\n",
 136                                  get_ctrl_string(cnt),
 137                                  priv->tx_stats.ctrl[cnt]);
 138         }
 139         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 140         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 141                          priv->tx_stats.data_cnt);
 142         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 143                          priv->tx_stats.data_bytes);
 144         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 145         kfree(buf);
 146         return ret;
 147 }
 148
 149 static ssize_t iwl_dbgfs_clear_traffic_statistics_write(struct file *file,
 150                                         const char __user *user_buf,
 151                                         size_t count, loff_t *ppos)
 152 {
 153         struct iwl_priv *priv = file->private_data;
 154         u32 clear_flag;
 155         char buf[8];
 156         int buf_size;
 157
 158         memset(buf, 0, sizeof(buf));
 159         buf_size = min(count, sizeof(buf) -  1);
 160         if (copy_from_user(buf, user_buf, buf_size))
 161                 return -EFAULT;
 162         if (sscanf(buf, "%x", &clear_flag) != 1)
 163                 return -EFAULT;
 164         iwl_clear_traffic_stats(priv);
 165
 166         return count;
 167 }
 168
 169 static ssize_t iwl_dbgfs_rx_statistics_read(struct file *file,
 170                                                 char __user *user_buf,
 171                                                 size_t count, loff_t *ppos) {
 172
 173         struct iwl_priv *priv = file->private_data;
 174         char *buf;
 175         int pos = 0;
 176         int cnt;
 177         ssize_t ret;
 178         const size_t bufsz = 100 +
 179                 sizeof(char) * 50 * (MANAGEMENT_MAX + CONTROL_MAX);
 180         buf = kzalloc(bufsz, GFP_KERNEL);
 181         if (!buf)
 182                 return -ENOMEM;
 183
 184         pos += scnprintf(buf + pos, bufsz - pos, "Management:\n");
 185         for (cnt = 0; cnt < MANAGEMENT_MAX; cnt++) {
 186                 pos += scnprintf(buf + pos, bufsz - pos,
 187                                  "\t%25s\t\t: %u\n",
 188                                  get_mgmt_string(cnt),
 189                                  priv->rx_stats.mgmt[cnt]);
 190         }
 191         pos += scnprintf(buf + pos, bufsz - pos, "Control:\n");
 192         for (cnt = 0; cnt < CONTROL_MAX; cnt++) {
 193                 pos += scnprintf(buf + pos, bufsz - pos,
 194                                  "\t%25s\t\t: %u\n",
 195                                  get_ctrl_string(cnt),
 196                                  priv->rx_stats.ctrl[cnt]);
 197         }
 198         pos += scnprintf(buf + pos, bufsz - pos, "Data:\n");
 199         pos += scnprintf(buf + pos, bufsz - pos, "\tcnt: %u\n",
 200                          priv->rx_stats.data_cnt);
 201         pos += scnprintf(buf + pos, bufsz - pos, "\tbytes: %llu\n",
 202                          priv->rx_stats.data_bytes);
 203
 204         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 205         kfree(buf);
 206         return ret;
 207 }
 208
 209 #define BYTE1_MASK 0x000000ff;
 210 #define BYTE2_MASK 0x0000ffff;
 211 #define BYTE3_MASK 0x00ffffff;
 212 static ssize_t iwl_dbgfs_sram_read(struct file *file,
 213                                         char __user *user_buf,
 214                                         size_t count, loff_t *ppos)
 215 {
 216         u32 val;
 217         char *buf;
 218         ssize_t ret;
 219         int i;
 220         int pos = 0;
 221         struct iwl_priv *priv = file->private_data;
 222         size_t bufsz;
 223
 224         /* default is to dump the entire data segment */
 225         if (!priv->dbgfs_sram_offset && !priv->dbgfs_sram_len) {
 226                 priv->dbgfs_sram_offset = 0x800000;
 227                 if (priv->ucode_type == UCODE_INIT)
 228                         priv->dbgfs_sram_len = priv->ucode_init_data.len;
 229                 else
 230                         priv->dbgfs_sram_len = priv->ucode_data.len;
 231         }
 232         bufsz =  30 + priv->dbgfs_sram_len * sizeof(char) * 10;
 233         buf = kmalloc(bufsz, GFP_KERNEL);
 234         if (!buf)
 235                 return -ENOMEM;
 236         pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n",
 237                         priv->dbgfs_sram_len);
 238         pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n",
 239                         priv->dbgfs_sram_offset);
 240         for (i = priv->dbgfs_sram_len; i > 0; i -= 4) {
 241                 val = iwl_read_targ_mem(priv, priv->dbgfs_sram_offset + \
 242                                         priv->dbgfs_sram_len - i);
 243                 if (i < 4) {
 244                         switch (i) {
 245                         case 1:
 246                                 val &= BYTE1_MASK;
 247                                 break;
 248                         case 2:
 249                                 val &= BYTE2_MASK;
 250                                 break;
 251                         case 3:
 252                                 val &= BYTE3_MASK;
 253                                 break;
 254                         }
 255                 }
 256                 if (!(i % 16))
 257                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 258                 pos += scnprintf(buf + pos, bufsz - pos, "0x%08x ", val);
 259         }
 260         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 261
 262         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 263         kfree(buf);
 264         return ret;
 265 }
 266
 267 static ssize_t iwl_dbgfs_sram_write(struct file *file,
 268                                         const char __user *user_buf,
 269                                         size_t count, loff_t *ppos)
 270 {
 271         struct iwl_priv *priv = file->private_data;
 272         char buf[64];
 273         int buf_size;
 274         u32 offset, len;
 275
 276         memset(buf, 0, sizeof(buf));
 277         buf_size = min(count, sizeof(buf) -  1);
 278         if (copy_from_user(buf, user_buf, buf_size))
 279                 return -EFAULT;
 280
 281         if (sscanf(buf, "%x,%x", &offset, &len) == 2) {
 282                 priv->dbgfs_sram_offset = offset;
 283                 priv->dbgfs_sram_len = len;
 284         } else {
 285                 priv->dbgfs_sram_offset = 0;
 286                 priv->dbgfs_sram_len = 0;
 287         }
 288
 289         return count;
 290 }
 291
 292 static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 293                                         size_t count, loff_t *ppos)
 294 {
 295         struct iwl_priv *priv = file->private_data;
 296         struct iwl_station_entry *station;
 297         int max_sta = priv->hw_params.max_stations;
 298         char *buf;
 299         int i, j, pos = 0;
 300         ssize_t ret;
 301         /* Add 30 for initial string */
 302         const size_t bufsz = 30 + sizeof(char) * 500 * (priv->num_stations);
 303
 304         buf = kmalloc(bufsz, GFP_KERNEL);
 305         if (!buf)
 306                 return -ENOMEM;
 307
 308         pos += scnprintf(buf + pos, bufsz - pos, "num of stations: %d\n\n",
 309                         priv->num_stations);
 310
 311         for (i = 0; i < max_sta; i++) {
 312                 station = &priv->stations[i];
 313                 if (station->used) {
 314                         pos += scnprintf(buf + pos, bufsz - pos,
 315                                         "station %d:\ngeneral data:\n", i+1);
 316                         pos += scnprintf(buf + pos, bufsz - pos, "id: %u\n",
 317                                         station->sta.sta.sta_id);
 318                         pos += scnprintf(buf + pos, bufsz - pos, "mode: %u\n",
 319                                         station->sta.mode);
 320                         pos += scnprintf(buf + pos, bufsz - pos,
 321                                         "flags: 0x%x\n",
 322                                         station->sta.station_flags_msk);
 323                         pos += scnprintf(buf + pos, bufsz - pos, "tid data:\n");
 324                         pos += scnprintf(buf + pos, bufsz - pos,
 325                                         "seq_num\t\ttxq_id");
 326                         pos += scnprintf(buf + pos, bufsz - pos,
 327                                         "\tframe_count\twait_for_ba\t");
 328                         pos += scnprintf(buf + pos, bufsz - pos,
 329                                         "start_idx\tbitmap0\t");
 330                         pos += scnprintf(buf + pos, bufsz - pos,
 331                                         "bitmap1\trate_n_flags");
 332                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 333
 334                         for (j = 0; j < MAX_TID_COUNT; j++) {
 335                                 pos += scnprintf(buf + pos, bufsz - pos,
 336                                                 "[%d]:\t\t%u", j,
 337                                                 station->tid[j].seq_number);
 338                                 pos += scnprintf(buf + pos, bufsz - pos,
 339                                                 "\t%u\t\t%u\t\t%u\t\t",
 340                                                 station->tid[j].agg.txq_id,
 341                                                 station->tid[j].agg.frame_count,
 342                                                 station->tid[j].agg.wait_for_ba);
 343                                 pos += scnprintf(buf + pos, bufsz - pos,
 344                                                 "%u\t%llu\t%u",
 345                                                 station->tid[j].agg.start_idx,
 346                                                 (unsigned long long)station->tid[j].agg.bitmap,
 347                                                 station->tid[j].agg.rate_n_flags);
 348                                 pos += scnprintf(buf + pos, bufsz - pos, "\n");
 349                         }
 350                         pos += scnprintf(buf + pos, bufsz - pos, "\n");
 351                 }
 352         }
 353
 354         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 355         kfree(buf);
 356         return ret;
 357 }
 358
 359 static ssize_t iwl_dbgfs_nvm_read(struct file *file,
 360                                        char __user *user_buf,
 361                                        size_t count,
 362                                        loff_t *ppos)
 363 {
 364         ssize_t ret;
 365         struct iwl_priv *priv = file->private_data;
 366         int pos = 0, ofs = 0, buf_size = 0;
 367         const u8 *ptr;
 368         char *buf;
 369         u16 eeprom_ver;
 370         size_t eeprom_len = priv->cfg->eeprom_size;
 371         buf_size = 4 * eeprom_len + 256;
 372
 373         if (eeprom_len % 16) {
 374                 IWL_ERR(priv, "NVM size is not multiple of 16.\n");
 375                 return -ENODATA;
 376         }
 377
 378         ptr = priv->eeprom;
 379         if (!ptr) {
 380                 IWL_ERR(priv, "Invalid EEPROM/OTP memory\n");
 381                 return -ENOMEM;
 382         }
 383
 384         /* 4 characters for byte 0xYY */
 385         buf = kzalloc(buf_size, GFP_KERNEL);
 386         if (!buf) {
 387                 IWL_ERR(priv, "Can not allocate Buffer\n");
 388                 return -ENOMEM;
 389         }
 390         eeprom_ver = iwl_eeprom_query16(priv, EEPROM_VERSION);
 391         pos += scnprintf(buf + pos, buf_size - pos, "NVM Type: %s, "
 392                         "version: 0x%x\n",
 393                         (priv->nvm_device_type == NVM_DEVICE_TYPE_OTP)
 394                          ? "OTP" : "EEPROM", eeprom_ver);
 395         for (ofs = 0 ; ofs < eeprom_len ; ofs += 16) {
 396                 pos += scnprintf(buf + pos, buf_size - pos, "0x%.4x ", ofs);
 397                 hex_dump_to_buffer(ptr + ofs, 16 , 16, 2, buf + pos,
 398                                    buf_size - pos, 0);
 399                 pos += strlen(buf + pos);
 400                 if (buf_size - pos > 0)
 401                         buf[pos++] = '\n';
 402         }
 403
 404         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 405         kfree(buf);
 406         return ret;
 407 }
 408
 409 static ssize_t iwl_dbgfs_log_event_read(struct file *file,
 410                                          char __user *user_buf,
 411                                          size_t count, loff_t *ppos)
 412 {
 413         struct iwl_priv *priv = file->private_data;
 414         char *buf;
 415         int pos = 0;
 416         ssize_t ret = -ENOMEM;
 417
 418         ret = pos = priv->cfg->ops->lib->dump_nic_event_log(
 419                                         priv, true, &buf, true);
 420         if (buf) {
 421                 ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 422                 kfree(buf);
 423         }
 424         return ret;
 425 }
 426
 427 static ssize_t iwl_dbgfs_log_event_write(struct file *file,
 428                                         const char __user *user_buf,
 429                                         size_t count, loff_t *ppos)
 430 {
 431         struct iwl_priv *priv = file->private_data;
 432         u32 event_log_flag;
 433         char buf[8];
 434         int buf_size;
 435
 436         memset(buf, 0, sizeof(buf));
 437         buf_size = min(count, sizeof(buf) -  1);
 438         if (copy_from_user(buf, user_buf, buf_size))
 439                 return -EFAULT;
 440         if (sscanf(buf, "%d", &event_log_flag) != 1)
 441                 return -EFAULT;
 442         if (event_log_flag == 1)
 443                 priv->cfg->ops->lib->dump_nic_event_log(priv, true,
 444                                                         NULL, false);
 445
 446         return count;
 447 }
 448
 449
 450
 451 static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf,
 452                                        size_t count, loff_t *ppos)
 453 {
 454         struct iwl_priv *priv = file->private_data;
 455         struct ieee80211_channel *channels = NULL;
 456         const struct ieee80211_supported_band *supp_band = NULL;
 457         int pos = 0, i, bufsz = PAGE_SIZE;
 458         char *buf;
 459         ssize_t ret;
 460
 461         if (!test_bit(STATUS_GEO_CONFIGURED, &priv->status))
 462                 return -EAGAIN;
 463
 464         buf = kzalloc(bufsz, GFP_KERNEL);
 465         if (!buf) {
 466                 IWL_ERR(priv, "Can not allocate Buffer\n");
 467                 return -ENOMEM;
 468         }
 469
 470         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_2GHZ);
 471         if (supp_band) {
 472                 channels = supp_band->channels;
 473
 474                 pos += scnprintf(buf + pos, bufsz - pos,
 475                                 "Displaying %d channels in 2.4GHz band 802.11bg):\n",
 476                                 supp_band->n_channels);
 477
 478                 for (i = 0; i < supp_band->n_channels; i++)
 479                         pos += scnprintf(buf + pos, bufsz - pos,
 480                                         "%d: %ddBm: BSS%s%s, %s.\n",
 481                                         ieee80211_frequency_to_channel(
 482                                         channels[i].center_freq),
 483                                         channels[i].max_power,
 484                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 485                                         " (IEEE 802.11h required)" : "",
 486                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 487                                         || (channels[i].flags &
 488                                         IEEE80211_CHAN_RADAR)) ? "" :
 489                                         ", IBSS",
 490                                         channels[i].flags &
 491                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 492                                         "passive only" : "active/passive");
 493         }
 494         supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ);
 495         if (supp_band) {
 496                 channels = supp_band->channels;
 497
 498                 pos += scnprintf(buf + pos, bufsz - pos,
 499                                 "Displaying %d channels in 5.2GHz band (802.11a)\n",
 500                                 supp_band->n_channels);
 501
 502                 for (i = 0; i < supp_band->n_channels; i++)
 503                         pos += scnprintf(buf + pos, bufsz - pos,
 504                                         "%d: %ddBm: BSS%s%s, %s.\n",
 505                                         ieee80211_frequency_to_channel(
 506                                         channels[i].center_freq),
 507                                         channels[i].max_power,
 508                                         channels[i].flags & IEEE80211_CHAN_RADAR ?
 509                                         " (IEEE 802.11h required)" : "",
 510                                         ((channels[i].flags & IEEE80211_CHAN_NO_IBSS)
 511                                         || (channels[i].flags &
 512                                         IEEE80211_CHAN_RADAR)) ? "" :
 513                                         ", IBSS",
 514                                         channels[i].flags &
 515                                         IEEE80211_CHAN_PASSIVE_SCAN ?
 516                                         "passive only" : "active/passive");
 517         }
 518         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 519         kfree(buf);
 520         return ret;
 521 }
 522
 523 static ssize_t iwl_dbgfs_status_read(struct file *file,
 524                                                 char __user *user_buf,
 525                                                 size_t count, loff_t *ppos) {
 526
 527         struct iwl_priv *priv = file->private_data;
 528         char buf[512];
 529         int pos = 0;
 530         const size_t bufsz = sizeof(buf);
 531
 532         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n",
 533                 test_bit(STATUS_HCMD_ACTIVE, &priv->status));
 534         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n",
 535                 test_bit(STATUS_INT_ENABLED, &priv->status));
 536         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_RF_KILL_HW:\t %d\n",
 537                 test_bit(STATUS_RF_KILL_HW, &priv->status));
 538         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_CT_KILL:\t\t %d\n",
 539                 test_bit(STATUS_CT_KILL, &priv->status));
 540         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INIT:\t\t %d\n",
 541                 test_bit(STATUS_INIT, &priv->status));
 542         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_ALIVE:\t\t %d\n",
 543                 test_bit(STATUS_ALIVE, &priv->status));
 544         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_READY:\t\t %d\n",
 545                 test_bit(STATUS_READY, &priv->status));
 546         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_TEMPERATURE:\t %d\n",
 547                 test_bit(STATUS_TEMPERATURE, &priv->status));
 548         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_GEO_CONFIGURED:\t %d\n",
 549                 test_bit(STATUS_GEO_CONFIGURED, &priv->status));
 550         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_EXIT_PENDING:\t %d\n",
 551                 test_bit(STATUS_EXIT_PENDING, &priv->status));
 552         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_STATISTICS:\t %d\n",
 553                 test_bit(STATUS_STATISTICS, &priv->status));
 554         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCANNING:\t %d\n",
 555                 test_bit(STATUS_SCANNING, &priv->status));
 556         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_ABORTING:\t %d\n",
 557                 test_bit(STATUS_SCAN_ABORTING, &priv->status));
 558         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_SCAN_HW:\t\t %d\n",
 559                 test_bit(STATUS_SCAN_HW, &priv->status));
 560         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_POWER_PMI:\t %d\n",
 561                 test_bit(STATUS_POWER_PMI, &priv->status));
 562         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_FW_ERROR:\t %d\n",
 563                 test_bit(STATUS_FW_ERROR, &priv->status));
 564         pos += scnprintf(buf + pos, bufsz - pos, "STATUS_MODE_PENDING:\t %d\n",
 565                 test_bit(STATUS_MODE_PENDING, &priv->status));
 566         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 567 }
 568
 569 static ssize_t iwl_dbgfs_interrupt_read(struct file *file,
 570                                         char __user *user_buf,
 571                                         size_t count, loff_t *ppos) {
 572
 573         struct iwl_priv *priv = file->private_data;
 574         int pos = 0;
 575         int cnt = 0;
 576         char *buf;
 577         int bufsz = 24 * 64; /* 24 items * 64 char per item */
 578         ssize_t ret;
 579
 580         buf = kzalloc(bufsz, GFP_KERNEL);
 581         if (!buf) {
 582                 IWL_ERR(priv, "Can not allocate Buffer\n");
 583                 return -ENOMEM;
 584         }
 585
 586         pos += scnprintf(buf + pos, bufsz - pos,
 587                         "Interrupt Statistics Report:\n");
 588
 589         pos += scnprintf(buf + pos, bufsz - pos, "HW Error:\t\t\t %u\n",
 590                 priv->isr_stats.hw);
 591         pos += scnprintf(buf + pos, bufsz - pos, "SW Error:\t\t\t %u\n",
 592                 priv->isr_stats.sw);
 593         if (priv->isr_stats.sw > 0) {
 594                 pos += scnprintf(buf + pos, bufsz - pos,
 595                         "\tLast Restarting Code:  0x%X\n",
 596                         priv->isr_stats.sw_err);
 597         }
 598 #ifdef CONFIG_IWLWIFI_DEBUG
 599         pos += scnprintf(buf + pos, bufsz - pos, "Frame transmitted:\t\t %u\n",
 600                 priv->isr_stats.sch);
 601         pos += scnprintf(buf + pos, bufsz - pos, "Alive interrupt:\t\t %u\n",
 602                 priv->isr_stats.alive);
 603 #endif
 604         pos += scnprintf(buf + pos, bufsz - pos,
 605                 "HW RF KILL switch toggled:\t %u\n",
 606                 priv->isr_stats.rfkill);
 607
 608         pos += scnprintf(buf + pos, bufsz - pos, "CT KILL:\t\t\t %u\n",
 609                 priv->isr_stats.ctkill);
 610
 611         pos += scnprintf(buf + pos, bufsz - pos, "Wakeup Interrupt:\t\t %u\n",
 612                 priv->isr_stats.wakeup);
 613
 614         pos += scnprintf(buf + pos, bufsz - pos,
 615                 "Rx command responses:\t\t %u\n",
 616                 priv->isr_stats.rx);
 617         for (cnt = 0; cnt < REPLY_MAX; cnt++) {
 618                 if (priv->isr_stats.rx_handlers[cnt] > 0)
 619                         pos += scnprintf(buf + pos, bufsz - pos,
 620                                 "\tRx handler[%36s]:\t\t %u\n",
 621                                 get_cmd_string(cnt),
 622                                 priv->isr_stats.rx_handlers[cnt]);
 623         }
 624
 625         pos += scnprintf(buf + pos, bufsz - pos, "Tx/FH interrupt:\t\t %u\n",
 626                 priv->isr_stats.tx);
 627
 628         pos += scnprintf(buf + pos, bufsz - pos, "Unexpected INTA:\t\t %u\n",
 629                 priv->isr_stats.unhandled);
 630
 631         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 632         kfree(buf);
 633         return ret;
 634 }
 635
 636 static ssize_t iwl_dbgfs_interrupt_write(struct file *file,
 637                                          const char __user *user_buf,
 638                                          size_t count, loff_t *ppos)
 639 {
 640         struct iwl_priv *priv = file->private_data;
 641         char buf[8];
 642         int buf_size;
 643         u32 reset_flag;
 644
 645         memset(buf, 0, sizeof(buf));
 646         buf_size = min(count, sizeof(buf) -  1);
 647         if (copy_from_user(buf, user_buf, buf_size))
 648                 return -EFAULT;
 649         if (sscanf(buf, "%x", &reset_flag) != 1)
 650                 return -EFAULT;
 651         if (reset_flag == 0)
 652                 iwl_clear_isr_stats(priv);
 653
 654         return count;
 655 }
 656
 657 static ssize_t iwl_dbgfs_qos_read(struct file *file, char __user *user_buf,
 658                                        size_t count, loff_t *ppos)
 659 {
 660         struct iwl_priv *priv = file->private_data;
 661         int pos = 0, i;
 662         char buf[256];
 663         const size_t bufsz = sizeof(buf);
 664         ssize_t ret;
 665
 666         for (i = 0; i < AC_NUM; i++) {
 667                 pos += scnprintf(buf + pos, bufsz - pos,
 668                         "\tcw_min\tcw_max\taifsn\ttxop\n");
 669                 pos += scnprintf(buf + pos, bufsz - pos,
 670                                 "AC[%d]\t%u\t%u\t%u\t%u\n", i,
 671                                 priv->qos_data.def_qos_parm.ac[i].cw_min,
 672                                 priv->qos_data.def_qos_parm.ac[i].cw_max,
 673                                 priv->qos_data.def_qos_parm.ac[i].aifsn,
 674                                 priv->qos_data.def_qos_parm.ac[i].edca_txop);
 675         }
 676         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 677         return ret;
 678 }
 679
 680 static ssize_t iwl_dbgfs_led_read(struct file *file, char __user *user_buf,
 681                                   size_t count, loff_t *ppos)
 682 {
 683         struct iwl_priv *priv = file->private_data;
 684         int pos = 0;
 685         char buf[256];
 686         const size_t bufsz = sizeof(buf);
 687         ssize_t ret;
 688
 689         pos += scnprintf(buf + pos, bufsz - pos,
 690                          "allow blinking: %s\n",
 691                          (priv->allow_blinking) ? "True" : "False");
 692         if (priv->allow_blinking) {
 693                 pos += scnprintf(buf + pos, bufsz - pos,
 694                                  "Led blinking rate: %u\n",
 695                                  priv->last_blink_rate);
 696                 pos += scnprintf(buf + pos, bufsz - pos,
 697                                  "Last blink time: %lu\n",
 698                                  priv->last_blink_time);
 699         }
 700
 701         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 702         return ret;
 703 }
 704
 705 static ssize_t iwl_dbgfs_thermal_throttling_read(struct file *file,
 706                                 char __user *user_buf,
 707                                 size_t count, loff_t *ppos)
 708 {
 709         struct iwl_priv *priv = file->private_data;
 710         struct iwl_tt_mgmt *tt = &priv->thermal_throttle;
 711         struct iwl_tt_restriction *restriction;
 712         char buf[100];
 713         int pos = 0;
 714         const size_t bufsz = sizeof(buf);
 715         ssize_t ret;
 716
 717         pos += scnprintf(buf + pos, bufsz - pos,
 718                         "Thermal Throttling Mode: %s\n",
 719                         tt->advanced_tt ? "Advance" : "Legacy");
 720         pos += scnprintf(buf + pos, bufsz - pos,
 721                         "Thermal Throttling State: %d\n",
 722                         tt->state);
 723         if (tt->advanced_tt) {
 724                 restriction = tt->restriction + tt->state;
 725                 pos += scnprintf(buf + pos, bufsz - pos,
 726                                 "Tx mode: %d\n",
 727                                 restriction->tx_stream);
 728                 pos += scnprintf(buf + pos, bufsz - pos,
 729                                 "Rx mode: %d\n",
 730                                 restriction->rx_stream);
 731                 pos += scnprintf(buf + pos, bufsz - pos,
 732                                 "HT mode: %d\n",
 733                                 restriction->is_ht);
 734         }
 735         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 736         return ret;
 737 }
 738
 739 static ssize_t iwl_dbgfs_disable_ht40_write(struct file *file,
 740                                          const char __user *user_buf,
 741                                          size_t count, loff_t *ppos)
 742 {
 743         struct iwl_priv *priv = file->private_data;
 744         char buf[8];
 745         int buf_size;
 746         int ht40;
 747
 748         memset(buf, 0, sizeof(buf));
 749         buf_size = min(count, sizeof(buf) -  1);
 750         if (copy_from_user(buf, user_buf, buf_size))
 751                 return -EFAULT;
 752         if (sscanf(buf, "%d", &ht40) != 1)
 753                 return -EFAULT;
 754         if (!iwl_is_associated(priv))
 755                 priv->disable_ht40 = ht40 ? true : false;
 756         else {
 757                 IWL_ERR(priv, "Sta associated with AP - "
 758                         "Change to 40MHz channel support is not allowed\n");
 759                 return -EINVAL;
 760         }
 761
 762         return count;
 763 }
 764
 765 static ssize_t iwl_dbgfs_disable_ht40_read(struct file *file,
 766                                          char __user *user_buf,
 767                                          size_t count, loff_t *ppos)
 768 {
 769         struct iwl_priv *priv = file->private_data;
 770         char buf[100];
 771         int pos = 0;
 772         const size_t bufsz = sizeof(buf);
 773         ssize_t ret;
 774
 775         pos += scnprintf(buf + pos, bufsz - pos,
 776                         "11n 40MHz Mode: %s\n",
 777                         priv->disable_ht40 ? "Disabled" : "Enabled");
 778         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 779         return ret;
 780 }
 781
 782 static ssize_t iwl_dbgfs_sleep_level_override_write(struct file *file,
 783                                                     const char __user *user_buf,
 784                                                     size_t count, loff_t *ppos)
 785 {
 786         struct iwl_priv *priv = file->private_data;
 787         char buf[8];
 788         int buf_size;
 789         int value;
 790
 791         memset(buf, 0, sizeof(buf));
 792         buf_size = min(count, sizeof(buf) -  1);
 793         if (copy_from_user(buf, user_buf, buf_size))
 794                 return -EFAULT;
 795
 796         if (sscanf(buf, "%d", &value) != 1)
 797                 return -EINVAL;
 798
 799         /*
 800          * Our users expect 0 to be "CAM", but 0 isn't actually
 801          * valid here. However, let's not confuse them and present
 802          * IWL_POWER_INDEX_1 as "1", not "0".
 803          */
 804         if (value == 0)
 805                 return -EINVAL;
 806         else if (value > 0)
 807                 value -= 1;
 808
 809         if (value != -1 && (value < 0 || value >= IWL_POWER_NUM))
 810                 return -EINVAL;
 811
 812         if (!iwl_is_ready_rf(priv))
 813                 return -EAGAIN;
 814
 815         priv->power_data.debug_sleep_level_override = value;
 816
 817         mutex_lock(&priv->mutex);
 818         iwl_power_update_mode(priv, true);
 819         mutex_unlock(&priv->mutex);
 820
 821         return count;
 822 }
 823
 824 static ssize_t iwl_dbgfs_sleep_level_override_read(struct file *file,
 825                                                    char __user *user_buf,
 826                                                    size_t count, loff_t *ppos)
 827 {
 828         struct iwl_priv *priv = file->private_data;
 829         char buf[10];
 830         int pos, value;
 831         const size_t bufsz = sizeof(buf);
 832
 833         /* see the write function */
 834         value = priv->power_data.debug_sleep_level_override;
 835         if (value >= 0)
 836                 value += 1;
 837
 838         pos = scnprintf(buf, bufsz, "%d\n", value);
 839         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 840 }
 841
 842 static ssize_t iwl_dbgfs_current_sleep_command_read(struct file *file,
 843                                                     char __user *user_buf,
 844                                                     size_t count, loff_t *ppos)
 845 {
 846         struct iwl_priv *priv = file->private_data;
 847         char buf[200];
 848         int pos = 0, i;
 849         const size_t bufsz = sizeof(buf);
 850         struct iwl_powertable_cmd *cmd = &priv->power_data.sleep_cmd;
 851
 852         pos += scnprintf(buf + pos, bufsz - pos,
 853                          "flags: %#.2x\n", le16_to_cpu(cmd->flags));
 854         pos += scnprintf(buf + pos, bufsz - pos,
 855                          "RX/TX timeout: %d/%d usec\n",
 856                          le32_to_cpu(cmd->rx_data_timeout),
 857                          le32_to_cpu(cmd->tx_data_timeout));
 858         for (i = 0; i < IWL_POWER_VEC_SIZE; i++)
 859                 pos += scnprintf(buf + pos, bufsz - pos,
 860                                  "sleep_interval[%d]: %d\n", i,
 861                                  le32_to_cpu(cmd->sleep_interval[i]));
 862
 863         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 864 }
 865
 866 DEBUGFS_READ_WRITE_FILE_OPS(sram);
 867 DEBUGFS_READ_WRITE_FILE_OPS(log_event);
 868 DEBUGFS_READ_FILE_OPS(nvm);
 869 DEBUGFS_READ_FILE_OPS(stations);
 870 DEBUGFS_READ_FILE_OPS(channels);
 871 DEBUGFS_READ_FILE_OPS(status);
 872 DEBUGFS_READ_WRITE_FILE_OPS(interrupt);
 873 DEBUGFS_READ_FILE_OPS(qos);
 874 DEBUGFS_READ_FILE_OPS(led);
 875 DEBUGFS_READ_FILE_OPS(thermal_throttling);
 876 DEBUGFS_READ_WRITE_FILE_OPS(disable_ht40);
 877 DEBUGFS_READ_WRITE_FILE_OPS(sleep_level_override);
 878 DEBUGFS_READ_FILE_OPS(current_sleep_command);
 879
 880 static ssize_t iwl_dbgfs_traffic_log_read(struct file *file,
 881                                          char __user *user_buf,
 882                                          size_t count, loff_t *ppos)
 883 {
 884         struct iwl_priv *priv = file->private_data;
 885         int pos = 0, ofs = 0;
 886         int cnt = 0, entry;
 887         struct iwl_tx_queue *txq;
 888         struct iwl_queue *q;
 889         struct iwl_rx_queue *rxq = &priv->rxq;
 890         char *buf;
 891         int bufsz = ((IWL_TRAFFIC_ENTRIES * IWL_TRAFFIC_ENTRY_SIZE * 64) * 2) +
 892                 (priv->cfg->num_of_queues * 32 * 8) + 400;
 893         const u8 *ptr;
 894         ssize_t ret;
 895
 896         if (!priv->txq) {
 897                 IWL_ERR(priv, "txq not ready\n");
 898                 return -EAGAIN;
 899         }
 900         buf = kzalloc(bufsz, GFP_KERNEL);
 901         if (!buf) {
 902                 IWL_ERR(priv, "Can not allocate buffer\n");
 903                 return -ENOMEM;
 904         }
 905         pos += scnprintf(buf + pos, bufsz - pos, "Tx Queue\n");
 906         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
 907                 txq = &priv->txq[cnt];
 908                 q = &txq->q;
 909                 pos += scnprintf(buf + pos, bufsz - pos,
 910                                 "q[%d]: read_ptr: %u, write_ptr: %u\n",
 911                                 cnt, q->read_ptr, q->write_ptr);
 912         }
 913         if (priv->tx_traffic && (iwl_debug_level & IWL_DL_TX)) {
 914                 ptr = priv->tx_traffic;
 915                 pos += scnprintf(buf + pos, bufsz - pos,
 916                                 "Tx Traffic idx: %u\n", priv->tx_traffic_idx);
 917                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 918                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 919                              entry++,  ofs += 16) {
 920                                 pos += scnprintf(buf + pos, bufsz - pos,
 921                                                 "0x%.4x ", ofs);
 922                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 923                                                    buf + pos, bufsz - pos, 0);
 924                                 pos += strlen(buf + pos);
 925                                 if (bufsz - pos > 0)
 926                                         buf[pos++] = '\n';
 927                         }
 928                 }
 929         }
 930
 931         pos += scnprintf(buf + pos, bufsz - pos, "Rx Queue\n");
 932         pos += scnprintf(buf + pos, bufsz - pos,
 933                         "read: %u, write: %u\n",
 934                          rxq->read, rxq->write);
 935
 936         if (priv->rx_traffic && (iwl_debug_level & IWL_DL_RX)) {
 937                 ptr = priv->rx_traffic;
 938                 pos += scnprintf(buf + pos, bufsz - pos,
 939                                 "Rx Traffic idx: %u\n", priv->rx_traffic_idx);
 940                 for (cnt = 0, ofs = 0; cnt < IWL_TRAFFIC_ENTRIES; cnt++) {
 941                         for (entry = 0; entry < IWL_TRAFFIC_ENTRY_SIZE / 16;
 942                              entry++,  ofs += 16) {
 943                                 pos += scnprintf(buf + pos, bufsz - pos,
 944                                                 "0x%.4x ", ofs);
 945                                 hex_dump_to_buffer(ptr + ofs, 16, 16, 2,
 946                                                    buf + pos, bufsz - pos, 0);
 947                                 pos += strlen(buf + pos);
 948                                 if (bufsz - pos > 0)
 949                                         buf[pos++] = '\n';
 950                         }
 951                 }
 952         }
 953
 954         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 955         kfree(buf);
 956         return ret;
 957 }
 958
 959 static ssize_t iwl_dbgfs_traffic_log_write(struct file *file,
 960                                          const char __user *user_buf,
 961                                          size_t count, loff_t *ppos)
 962 {
 963         struct iwl_priv *priv = file->private_data;
 964         char buf[8];
 965         int buf_size;
 966         int traffic_log;
 967
 968         memset(buf, 0, sizeof(buf));
 969         buf_size = min(count, sizeof(buf) -  1);
 970         if (copy_from_user(buf, user_buf, buf_size))
 971                 return -EFAULT;
 972         if (sscanf(buf, "%d", &traffic_log) != 1)
 973                 return -EFAULT;
 974         if (traffic_log == 0)
 975                 iwl_reset_traffic_log(priv);
 976
 977         return count;
 978 }
 979
 980 static ssize_t iwl_dbgfs_tx_queue_read(struct file *file,
 981                                                 char __user *user_buf,
 982                                                 size_t count, loff_t *ppos) {
 983
 984         struct iwl_priv *priv = file->private_data;
 985         struct iwl_tx_queue *txq;
 986         struct iwl_queue *q;
 987         char *buf;
 988         int pos = 0;
 989         int cnt;
 990         int ret;
 991         const size_t bufsz = sizeof(char) * 64 * priv->cfg->num_of_queues;
 992
 993         if (!priv->txq) {
 994                 IWL_ERR(priv, "txq not ready\n");
 995                 return -EAGAIN;
 996         }
 997         buf = kzalloc(bufsz, GFP_KERNEL);
 998         if (!buf)
 999                 return -ENOMEM;
1000
1001         for (cnt = 0; cnt < priv->hw_params.max_txq_num; cnt++) {
1002                 txq = &priv->txq[cnt];
1003                 q = &txq->q;
1004                 pos += scnprintf(buf + pos, bufsz - pos,
1005                                 "hwq %.2d: read=%u write=%u stop=%d"
1006                                 " swq_id=%#.2x (ac %d/hwq %d)\n",
1007                                 cnt, q->read_ptr, q->write_ptr,
1008                                 !!test_bit(cnt, priv->queue_stopped),
1009                                 txq->swq_id,
1010                                 txq->swq_id & 0x80 ? txq->swq_id & 3 :
1011                                 txq->swq_id,
1012                                 txq->swq_id & 0x80 ? (txq->swq_id >> 2) &
1013                                 0x1f : txq->swq_id);
1014                 if (cnt >= 4)
1015                         continue;
1016                 /* for the ACs, display the stop count too */
1017                 pos += scnprintf(buf + pos, bufsz - pos,
1018                                 "        stop-count: %d\n",
1019                                 atomic_read(&priv->queue_stop_count[cnt]));
1020         }
1021         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1022         kfree(buf);
1023         return ret;
1024 }
1025
1026 static ssize_t iwl_dbgfs_rx_queue_read(struct file *file,
1027                                                 char __user *user_buf,
1028                                                 size_t count, loff_t *ppos) {
1029
1030         struct iwl_priv *priv = file->private_data;
1031         struct iwl_rx_queue *rxq = &priv->rxq;
1032         char buf[256];
1033         int pos = 0;
1034         const size_t bufsz = sizeof(buf);
1035
1036         pos += scnprintf(buf + pos, bufsz - pos, "read: %u\n",
1037                                                 rxq->read);
1038         pos += scnprintf(buf + pos, bufsz - pos, "write: %u\n",
1039                                                 rxq->write);
1040         pos += scnprintf(buf + pos, bufsz - pos, "free_count: %u\n",
1041                                                 rxq->free_count);
1042         pos += scnprintf(buf + pos, bufsz - pos, "closed_rb_num: %u\n",
1043                          le16_to_cpu(rxq->rb_stts->closed_rb_num) &  0x0FFF);
1044         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1045 }
1046
1047 static int iwl_dbgfs_statistics_flag(struct iwl_priv *priv, char *buf,
1048                                      int bufsz)
1049 {
1050         int p = 0;
1051
1052         p += scnprintf(buf + p, bufsz - p,
1053                 "Statistics Flag(0x%X):\n",
1054                 le32_to_cpu(priv->statistics.flag));
1055         if (le32_to_cpu(priv->statistics.flag) & UCODE_STATISTICS_CLEAR_MSK)
1056                 p += scnprintf(buf + p, bufsz - p,
1057                 "\tStatistics have been cleared\n");
1058         p += scnprintf(buf + p, bufsz - p,
1059                 "\tOperational Frequency: %s\n",
1060                 (le32_to_cpu(priv->statistics.flag) &
1061                 UCODE_STATISTICS_FREQUENCY_MSK)
1062                  ? "2.4 GHz" : "5.2 GHz");
1063         p += scnprintf(buf + p, bufsz - p,
1064                 "\tTGj Narrow Band: %s\n",
1065                 (le32_to_cpu(priv->statistics.flag) &
1066                 UCODE_STATISTICS_NARROW_BAND_MSK)
1067                  ? "enabled" : "disabled");
1068         return p;
1069 }
1070
1071 static const char ucode_stats_header[] =
1072         "%-32s     current  acumulative       delta         max\n";
1073 static const char ucode_stats_short_format[] =
1074         "  %-30s %10u\n";
1075 static const char ucode_stats_format[] =
1076         "  %-30s %10u  %10u  %10u  %10u\n";
1077
1078 static ssize_t iwl_dbgfs_ucode_rx_stats_read(struct file *file,
1079                                         char __user *user_buf,
1080                                         size_t count, loff_t *ppos)
1081 {
1082         struct iwl_priv *priv = file->private_data;
1083         int pos = 0;
1084         char *buf;
1085         int bufsz = sizeof(struct statistics_rx_phy) * 40 +
1086                 sizeof(struct statistics_rx_non_phy) * 40 +
1087                 sizeof(struct statistics_rx_ht_phy) * 40 + 400;
1088         ssize_t ret;
1089         struct statistics_rx_phy *ofdm, *accum_ofdm, *delta_ofdm, *max_ofdm;
1090         struct statistics_rx_phy *cck, *accum_cck, *delta_cck, *max_cck;
1091         struct statistics_rx_non_phy *general, *accum_general;
1092         struct statistics_rx_non_phy *delta_general, *max_general;
1093         struct statistics_rx_ht_phy *ht, *accum_ht, *delta_ht, *max_ht;
1094
1095         if (!iwl_is_alive(priv))
1096                 return -EAGAIN;
1097
1098         buf = kzalloc(bufsz, GFP_KERNEL);
1099         if (!buf) {
1100                 IWL_ERR(priv, "Can not allocate Buffer\n");
1101                 return -ENOMEM;
1102         }
1103
1104         /* the statistic information display here is based on
1105          * the last statistics notification from uCode
1106          * might not reflect the current uCode activity
1107          */
1108         ofdm = &priv->statistics.rx.ofdm;
1109         cck = &priv->statistics.rx.cck;
1110         general = &priv->statistics.rx.general;
1111         ht = &priv->statistics.rx.ofdm_ht;
1112         accum_ofdm = &priv->accum_statistics.rx.ofdm;
1113         accum_cck = &priv->accum_statistics.rx.cck;
1114         accum_general = &priv->accum_statistics.rx.general;
1115         accum_ht = &priv->accum_statistics.rx.ofdm_ht;
1116         delta_ofdm = &priv->delta_statistics.rx.ofdm;
1117         delta_cck = &priv->delta_statistics.rx.cck;
1118         delta_general = &priv->delta_statistics.rx.general;
1119         delta_ht = &priv->delta_statistics.rx.ofdm_ht;
1120         max_ofdm = &priv->max_delta.rx.ofdm;
1121         max_cck = &priv->max_delta.rx.cck;
1122         max_general = &priv->max_delta.rx.general;
1123         max_ht = &priv->max_delta.rx.ofdm_ht;
1124
1125         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1126         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1127                          "Statistics_Rx - OFDM:");
1128         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1129                          "ina_cnt:", le32_to_cpu(ofdm->ina_cnt),
1130                          accum_ofdm->ina_cnt,
1131                          delta_ofdm->ina_cnt, max_ofdm->ina_cnt);
1132         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1133                          "fina_cnt:",
1134                          le32_to_cpu(ofdm->fina_cnt), accum_ofdm->fina_cnt,
1135                          delta_ofdm->fina_cnt, max_ofdm->fina_cnt);
1136         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1137                          "plcp_err:",
1138                          le32_to_cpu(ofdm->plcp_err), accum_ofdm->plcp_err,
1139                          delta_ofdm->plcp_err, max_ofdm->plcp_err);
1140         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1141                          "crc32_err:",
1142                          le32_to_cpu(ofdm->crc32_err), accum_ofdm->crc32_err,
1143                          delta_ofdm->crc32_err, max_ofdm->crc32_err);
1144         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1145                          "overrun_err:",
1146                          le32_to_cpu(ofdm->overrun_err),
1147                          accum_ofdm->overrun_err,
1148                          delta_ofdm->overrun_err, max_ofdm->overrun_err);
1149         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1150                          "early_overrun_err:",
1151                          le32_to_cpu(ofdm->early_overrun_err),
1152                          accum_ofdm->early_overrun_err,
1153                          delta_ofdm->early_overrun_err,
1154                          max_ofdm->early_overrun_err);
1155         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1156                          "crc32_good:",
1157                          le32_to_cpu(ofdm->crc32_good),
1158                          accum_ofdm->crc32_good,
1159                          delta_ofdm->crc32_good, max_ofdm->crc32_good);
1160         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1161                          "false_alarm_cnt:",
1162                          le32_to_cpu(ofdm->false_alarm_cnt),
1163                          accum_ofdm->false_alarm_cnt,
1164                          delta_ofdm->false_alarm_cnt,
1165                          max_ofdm->false_alarm_cnt);
1166         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1167                          "fina_sync_err_cnt:",
1168                          le32_to_cpu(ofdm->fina_sync_err_cnt),
1169                          accum_ofdm->fina_sync_err_cnt,
1170                          delta_ofdm->fina_sync_err_cnt,
1171                          max_ofdm->fina_sync_err_cnt);
1172         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1173                          "sfd_timeout:",
1174                          le32_to_cpu(ofdm->sfd_timeout),
1175                          accum_ofdm->sfd_timeout,
1176                          delta_ofdm->sfd_timeout,
1177                          max_ofdm->sfd_timeout);
1178         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1179                          "fina_timeout:",
1180                          le32_to_cpu(ofdm->fina_timeout),
1181                          accum_ofdm->fina_timeout,
1182                          delta_ofdm->fina_timeout,
1183                          max_ofdm->fina_timeout);
1184         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1185                          "unresponded_rts:",
1186                          le32_to_cpu(ofdm->unresponded_rts),
1187                          accum_ofdm->unresponded_rts,
1188                          delta_ofdm->unresponded_rts,
1189                          max_ofdm->unresponded_rts);
1190         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1191                         "rxe_frame_lmt_ovrun:",
1192                          le32_to_cpu(ofdm->rxe_frame_limit_overrun),
1193                          accum_ofdm->rxe_frame_limit_overrun,
1194                          delta_ofdm->rxe_frame_limit_overrun,
1195                          max_ofdm->rxe_frame_limit_overrun);
1196         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1197                          "sent_ack_cnt:",
1198                          le32_to_cpu(ofdm->sent_ack_cnt),
1199                          accum_ofdm->sent_ack_cnt,
1200                          delta_ofdm->sent_ack_cnt,
1201                          max_ofdm->sent_ack_cnt);
1202         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1203                          "sent_cts_cnt:",
1204                          le32_to_cpu(ofdm->sent_cts_cnt),
1205                          accum_ofdm->sent_cts_cnt,
1206                          delta_ofdm->sent_cts_cnt, max_ofdm->sent_cts_cnt);
1207         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1208                          "sent_ba_rsp_cnt:",
1209                          le32_to_cpu(ofdm->sent_ba_rsp_cnt),
1210                          accum_ofdm->sent_ba_rsp_cnt,
1211                          delta_ofdm->sent_ba_rsp_cnt,
1212                          max_ofdm->sent_ba_rsp_cnt);
1213         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1214                          "dsp_self_kill:",
1215                          le32_to_cpu(ofdm->dsp_self_kill),
1216                          accum_ofdm->dsp_self_kill,
1217                          delta_ofdm->dsp_self_kill,
1218                          max_ofdm->dsp_self_kill);
1219         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1220                          "mh_format_err:",
1221                          le32_to_cpu(ofdm->mh_format_err),
1222                          accum_ofdm->mh_format_err,
1223                          delta_ofdm->mh_format_err,
1224                          max_ofdm->mh_format_err);
1225         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1226                          "re_acq_main_rssi_sum:",
1227                          le32_to_cpu(ofdm->re_acq_main_rssi_sum),
1228                          accum_ofdm->re_acq_main_rssi_sum,
1229                          delta_ofdm->re_acq_main_rssi_sum,
1230                         max_ofdm->re_acq_main_rssi_sum);
1231
1232         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1233                          "Statistics_Rx - CCK:");
1234         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1235                          "ina_cnt:",
1236                          le32_to_cpu(cck->ina_cnt), accum_cck->ina_cnt,
1237                          delta_cck->ina_cnt, max_cck->ina_cnt);
1238         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1239                          "fina_cnt:",
1240                          le32_to_cpu(cck->fina_cnt), accum_cck->fina_cnt,
1241                          delta_cck->fina_cnt, max_cck->fina_cnt);
1242         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1243                          "plcp_err:",
1244                          le32_to_cpu(cck->plcp_err), accum_cck->plcp_err,
1245                          delta_cck->plcp_err, max_cck->plcp_err);
1246         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1247                          "crc32_err:",
1248                          le32_to_cpu(cck->crc32_err), accum_cck->crc32_err,
1249                          delta_cck->crc32_err, max_cck->crc32_err);
1250         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1251                          "overrun_err:",
1252                          le32_to_cpu(cck->overrun_err),
1253                          accum_cck->overrun_err,
1254                          delta_cck->overrun_err, max_cck->overrun_err);
1255         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1256                          "early_overrun_err:",
1257                          le32_to_cpu(cck->early_overrun_err),
1258                          accum_cck->early_overrun_err,
1259                          delta_cck->early_overrun_err,
1260                          max_cck->early_overrun_err);
1261         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1262                          "crc32_good:",
1263                          le32_to_cpu(cck->crc32_good), accum_cck->crc32_good,
1264                          delta_cck->crc32_good,
1265                          max_cck->crc32_good);
1266         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1267                          "false_alarm_cnt:",
1268                          le32_to_cpu(cck->false_alarm_cnt),
1269                          accum_cck->false_alarm_cnt,
1270                          delta_cck->false_alarm_cnt, max_cck->false_alarm_cnt);
1271         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1272                          "fina_sync_err_cnt:",
1273                          le32_to_cpu(cck->fina_sync_err_cnt),
1274                          accum_cck->fina_sync_err_cnt,
1275                          delta_cck->fina_sync_err_cnt,
1276                          max_cck->fina_sync_err_cnt);
1277         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1278                          "sfd_timeout:",
1279                          le32_to_cpu(cck->sfd_timeout),
1280                          accum_cck->sfd_timeout,
1281                          delta_cck->sfd_timeout, max_cck->sfd_timeout);
1282         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1283                          "fina_timeout:",
1284                          le32_to_cpu(cck->fina_timeout),
1285                          accum_cck->fina_timeout,
1286                          delta_cck->fina_timeout, max_cck->fina_timeout);
1287         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1288                          "unresponded_rts:",
1289                          le32_to_cpu(cck->unresponded_rts),
1290                          accum_cck->unresponded_rts,
1291                          delta_cck->unresponded_rts,
1292                          max_cck->unresponded_rts);
1293         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1294                         "rxe_frame_lmt_ovrun:",
1295                          le32_to_cpu(cck->rxe_frame_limit_overrun),
1296                          accum_cck->rxe_frame_limit_overrun,
1297                          delta_cck->rxe_frame_limit_overrun,
1298                          max_cck->rxe_frame_limit_overrun);
1299         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1300                          "sent_ack_cnt:",
1301                          le32_to_cpu(cck->sent_ack_cnt),
1302                          accum_cck->sent_ack_cnt,
1303                          delta_cck->sent_ack_cnt,
1304                          max_cck->sent_ack_cnt);
1305         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1306                          "sent_cts_cnt:",
1307                          le32_to_cpu(cck->sent_cts_cnt),
1308                          accum_cck->sent_cts_cnt,
1309                          delta_cck->sent_cts_cnt,
1310                          max_cck->sent_cts_cnt);
1311         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1312                          "sent_ba_rsp_cnt:",
1313                          le32_to_cpu(cck->sent_ba_rsp_cnt),
1314                          accum_cck->sent_ba_rsp_cnt,
1315                          delta_cck->sent_ba_rsp_cnt,
1316                          max_cck->sent_ba_rsp_cnt);
1317         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1318                          "dsp_self_kill:",
1319                          le32_to_cpu(cck->dsp_self_kill),
1320                          accum_cck->dsp_self_kill,
1321                          delta_cck->dsp_self_kill,
1322                          max_cck->dsp_self_kill);
1323         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1324                          "mh_format_err:",
1325                          le32_to_cpu(cck->mh_format_err),
1326                          accum_cck->mh_format_err,
1327                          delta_cck->mh_format_err, max_cck->mh_format_err);
1328         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1329                          "re_acq_main_rssi_sum:",
1330                          le32_to_cpu(cck->re_acq_main_rssi_sum),
1331                          accum_cck->re_acq_main_rssi_sum,
1332                          delta_cck->re_acq_main_rssi_sum,
1333                          max_cck->re_acq_main_rssi_sum);
1334
1335         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1336                         "Statistics_Rx - GENERAL:");
1337         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1338                          "bogus_cts:",
1339                          le32_to_cpu(general->bogus_cts),
1340                          accum_general->bogus_cts,
1341                          delta_general->bogus_cts, max_general->bogus_cts);
1342         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1343                          "bogus_ack:",
1344                          le32_to_cpu(general->bogus_ack),
1345                          accum_general->bogus_ack,
1346                          delta_general->bogus_ack, max_general->bogus_ack);
1347         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1348                          "non_bssid_frames:",
1349                          le32_to_cpu(general->non_bssid_frames),
1350                          accum_general->non_bssid_frames,
1351                          delta_general->non_bssid_frames,
1352                          max_general->non_bssid_frames);
1353         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1354                          "filtered_frames:",
1355                          le32_to_cpu(general->filtered_frames),
1356                          accum_general->filtered_frames,
1357                          delta_general->filtered_frames,
1358                          max_general->filtered_frames);
1359         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1360                          "non_channel_beacons:",
1361                          le32_to_cpu(general->non_channel_beacons),
1362                          accum_general->non_channel_beacons,
1363                          delta_general->non_channel_beacons,
1364                          max_general->non_channel_beacons);
1365         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1366                          "channel_beacons:",
1367                          le32_to_cpu(general->channel_beacons),
1368                          accum_general->channel_beacons,
1369                          delta_general->channel_beacons,
1370                          max_general->channel_beacons);
1371         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1372                          "num_missed_bcon:",
1373                          le32_to_cpu(general->num_missed_bcon),
1374                          accum_general->num_missed_bcon,
1375                          delta_general->num_missed_bcon,
1376                          max_general->num_missed_bcon);
1377         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1378                         "adc_rx_saturation_time:",
1379                          le32_to_cpu(general->adc_rx_saturation_time),
1380                          accum_general->adc_rx_saturation_time,
1381                          delta_general->adc_rx_saturation_time,
1382                          max_general->adc_rx_saturation_time);
1383         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1384                         "ina_detect_search_tm:",
1385                          le32_to_cpu(general->ina_detection_search_time),
1386                          accum_general->ina_detection_search_time,
1387                          delta_general->ina_detection_search_time,
1388                          max_general->ina_detection_search_time);
1389         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1390                          "beacon_silence_rssi_a:",
1391                          le32_to_cpu(general->beacon_silence_rssi_a),
1392                          accum_general->beacon_silence_rssi_a,
1393                          delta_general->beacon_silence_rssi_a,
1394                          max_general->beacon_silence_rssi_a);
1395         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1396                          "beacon_silence_rssi_b:",
1397                          le32_to_cpu(general->beacon_silence_rssi_b),
1398                          accum_general->beacon_silence_rssi_b,
1399                          delta_general->beacon_silence_rssi_b,
1400                          max_general->beacon_silence_rssi_b);
1401         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1402                          "beacon_silence_rssi_c:",
1403                          le32_to_cpu(general->beacon_silence_rssi_c),
1404                          accum_general->beacon_silence_rssi_c,
1405                          delta_general->beacon_silence_rssi_c,
1406                          max_general->beacon_silence_rssi_c);
1407         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1408                         "interference_data_flag:",
1409                          le32_to_cpu(general->interference_data_flag),
1410                          accum_general->interference_data_flag,
1411                          delta_general->interference_data_flag,
1412                          max_general->interference_data_flag);
1413         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1414                          "channel_load:",
1415                          le32_to_cpu(general->channel_load),
1416                          accum_general->channel_load,
1417                          delta_general->channel_load,
1418                          max_general->channel_load);
1419         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1420                          "dsp_false_alarms:",
1421                          le32_to_cpu(general->dsp_false_alarms),
1422                          accum_general->dsp_false_alarms,
1423                          delta_general->dsp_false_alarms,
1424                          max_general->dsp_false_alarms);
1425         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1426                          "beacon_rssi_a:",
1427                          le32_to_cpu(general->beacon_rssi_a),
1428                          accum_general->beacon_rssi_a,
1429                          delta_general->beacon_rssi_a,
1430                          max_general->beacon_rssi_a);
1431         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1432                          "beacon_rssi_b:",
1433                          le32_to_cpu(general->beacon_rssi_b),
1434                          accum_general->beacon_rssi_b,
1435                          delta_general->beacon_rssi_b,
1436                          max_general->beacon_rssi_b);
1437         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1438                          "beacon_rssi_c:",
1439                          le32_to_cpu(general->beacon_rssi_c),
1440                          accum_general->beacon_rssi_c,
1441                          delta_general->beacon_rssi_c,
1442                          max_general->beacon_rssi_c);
1443         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1444                          "beacon_energy_a:",
1445                          le32_to_cpu(general->beacon_energy_a),
1446                          accum_general->beacon_energy_a,
1447                          delta_general->beacon_energy_a,
1448                          max_general->beacon_energy_a);
1449         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1450                          "beacon_energy_b:",
1451                          le32_to_cpu(general->beacon_energy_b),
1452                          accum_general->beacon_energy_b,
1453                          delta_general->beacon_energy_b,
1454                          max_general->beacon_energy_b);
1455         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1456                          "beacon_energy_c:",
1457                          le32_to_cpu(general->beacon_energy_c),
1458                          accum_general->beacon_energy_c,
1459                          delta_general->beacon_energy_c,
1460                          max_general->beacon_energy_c);
1461
1462         pos += scnprintf(buf + pos, bufsz - pos, "Statistics_Rx - OFDM_HT:\n");
1463         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1464                         "Statistics_Rx - OFDM_HT:");
1465         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1466                          "plcp_err:",
1467                          le32_to_cpu(ht->plcp_err), accum_ht->plcp_err,
1468                          delta_ht->plcp_err, max_ht->plcp_err);
1469         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1470                          "overrun_err:",
1471                          le32_to_cpu(ht->overrun_err), accum_ht->overrun_err,
1472                          delta_ht->overrun_err, max_ht->overrun_err);
1473         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1474                          "early_overrun_err:",
1475                          le32_to_cpu(ht->early_overrun_err),
1476                          accum_ht->early_overrun_err,
1477                          delta_ht->early_overrun_err,
1478                          max_ht->early_overrun_err);
1479         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1480                          "crc32_good:",
1481                          le32_to_cpu(ht->crc32_good), accum_ht->crc32_good,
1482                          delta_ht->crc32_good, max_ht->crc32_good);
1483         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1484                          "crc32_err:",
1485                          le32_to_cpu(ht->crc32_err), accum_ht->crc32_err,
1486                          delta_ht->crc32_err, max_ht->crc32_err);
1487         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1488                          "mh_format_err:",
1489                          le32_to_cpu(ht->mh_format_err),
1490                          accum_ht->mh_format_err,
1491                          delta_ht->mh_format_err, max_ht->mh_format_err);
1492         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1493                          "agg_crc32_good:",
1494                          le32_to_cpu(ht->agg_crc32_good),
1495                          accum_ht->agg_crc32_good,
1496                          delta_ht->agg_crc32_good, max_ht->agg_crc32_good);
1497         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1498                          "agg_mpdu_cnt:",
1499                          le32_to_cpu(ht->agg_mpdu_cnt),
1500                          accum_ht->agg_mpdu_cnt,
1501                          delta_ht->agg_mpdu_cnt, max_ht->agg_mpdu_cnt);
1502         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1503                          "agg_cnt:",
1504                          le32_to_cpu(ht->agg_cnt), accum_ht->agg_cnt,
1505                          delta_ht->agg_cnt, max_ht->agg_cnt);
1506         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1507                          "unsupport_mcs:",
1508                          le32_to_cpu(ht->unsupport_mcs),
1509                          accum_ht->unsupport_mcs,
1510                          delta_ht->unsupport_mcs, max_ht->unsupport_mcs);
1511
1512         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1513         kfree(buf);
1514         return ret;
1515 }
1516
1517 static ssize_t iwl_dbgfs_ucode_tx_stats_read(struct file *file,
1518                                         char __user *user_buf,
1519                                         size_t count, loff_t *ppos)
1520 {
1521         struct iwl_priv *priv = file->private_data;
1522         int pos = 0;
1523         char *buf;
1524         int bufsz = (sizeof(struct statistics_tx) * 48) + 250;
1525         ssize_t ret;
1526         struct statistics_tx *tx, *accum_tx, *delta_tx, *max_tx;
1527
1528         if (!iwl_is_alive(priv))
1529                 return -EAGAIN;
1530
1531         buf = kzalloc(bufsz, GFP_KERNEL);
1532         if (!buf) {
1533                 IWL_ERR(priv, "Can not allocate Buffer\n");
1534                 return -ENOMEM;
1535         }
1536
1537         /* the statistic information display here is based on
1538          * the last statistics notification from uCode
1539          * might not reflect the current uCode activity
1540          */
1541         tx = &priv->statistics.tx;
1542         accum_tx = &priv->accum_statistics.tx;
1543         delta_tx = &priv->delta_statistics.tx;
1544         max_tx = &priv->max_delta.tx;
1545         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1546         pos += scnprintf(buf + pos, bufsz - pos,  ucode_stats_header,
1547                         "Statistics_Tx:");
1548         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1549                          "preamble:",
1550                          le32_to_cpu(tx->preamble_cnt),
1551                          accum_tx->preamble_cnt,
1552                          delta_tx->preamble_cnt, max_tx->preamble_cnt);
1553         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1554                          "rx_detected_cnt:",
1555                          le32_to_cpu(tx->rx_detected_cnt),
1556                          accum_tx->rx_detected_cnt,
1557                          delta_tx->rx_detected_cnt, max_tx->rx_detected_cnt);
1558         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1559                          "bt_prio_defer_cnt:",
1560                          le32_to_cpu(tx->bt_prio_defer_cnt),
1561                          accum_tx->bt_prio_defer_cnt,
1562                          delta_tx->bt_prio_defer_cnt,
1563                          max_tx->bt_prio_defer_cnt);
1564         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1565                          "bt_prio_kill_cnt:",
1566                          le32_to_cpu(tx->bt_prio_kill_cnt),
1567                          accum_tx->bt_prio_kill_cnt,
1568                          delta_tx->bt_prio_kill_cnt,
1569                          max_tx->bt_prio_kill_cnt);
1570         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1571                          "few_bytes_cnt:",
1572                          le32_to_cpu(tx->few_bytes_cnt),
1573                          accum_tx->few_bytes_cnt,
1574                          delta_tx->few_bytes_cnt, max_tx->few_bytes_cnt);
1575         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1576                          "cts_timeout:",
1577                          le32_to_cpu(tx->cts_timeout), accum_tx->cts_timeout,
1578                          delta_tx->cts_timeout, max_tx->cts_timeout);
1579         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1580                          "ack_timeout:",
1581                          le32_to_cpu(tx->ack_timeout),
1582                          accum_tx->ack_timeout,
1583                          delta_tx->ack_timeout, max_tx->ack_timeout);
1584         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1585                          "expected_ack_cnt:",
1586                          le32_to_cpu(tx->expected_ack_cnt),
1587                          accum_tx->expected_ack_cnt,
1588                          delta_tx->expected_ack_cnt,
1589                          max_tx->expected_ack_cnt);
1590         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1591                          "actual_ack_cnt:",
1592                          le32_to_cpu(tx->actual_ack_cnt),
1593                          accum_tx->actual_ack_cnt,
1594                          delta_tx->actual_ack_cnt,
1595                          max_tx->actual_ack_cnt);
1596         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1597                          "dump_msdu_cnt:",
1598                          le32_to_cpu(tx->dump_msdu_cnt),
1599                          accum_tx->dump_msdu_cnt,
1600                          delta_tx->dump_msdu_cnt,
1601                          max_tx->dump_msdu_cnt);
1602         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1603                          "abort_nxt_frame_mismatch:",
1604                          le32_to_cpu(tx->burst_abort_next_frame_mismatch_cnt),
1605                          accum_tx->burst_abort_next_frame_mismatch_cnt,
1606                          delta_tx->burst_abort_next_frame_mismatch_cnt,
1607                          max_tx->burst_abort_next_frame_mismatch_cnt);
1608         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1609                          "abort_missing_nxt_frame:",
1610                          le32_to_cpu(tx->burst_abort_missing_next_frame_cnt),
1611                          accum_tx->burst_abort_missing_next_frame_cnt,
1612                          delta_tx->burst_abort_missing_next_frame_cnt,
1613                          max_tx->burst_abort_missing_next_frame_cnt);
1614         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1615                          "cts_timeout_collision:",
1616                          le32_to_cpu(tx->cts_timeout_collision),
1617                          accum_tx->cts_timeout_collision,
1618                          delta_tx->cts_timeout_collision,
1619                          max_tx->cts_timeout_collision);
1620         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1621                         "ack_ba_timeout_collision:",
1622                          le32_to_cpu(tx->ack_or_ba_timeout_collision),
1623                          accum_tx->ack_or_ba_timeout_collision,
1624                          delta_tx->ack_or_ba_timeout_collision,
1625                          max_tx->ack_or_ba_timeout_collision);
1626         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1627                          "agg ba_timeout:",
1628                          le32_to_cpu(tx->agg.ba_timeout),
1629                          accum_tx->agg.ba_timeout,
1630                          delta_tx->agg.ba_timeout,
1631                          max_tx->agg.ba_timeout);
1632         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1633                         "agg ba_resched_frames:",
1634                          le32_to_cpu(tx->agg.ba_reschedule_frames),
1635                          accum_tx->agg.ba_reschedule_frames,
1636                          delta_tx->agg.ba_reschedule_frames,
1637                          max_tx->agg.ba_reschedule_frames);
1638         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1639                         "agg scd_query_agg_frame:",
1640                          le32_to_cpu(tx->agg.scd_query_agg_frame_cnt),
1641                          accum_tx->agg.scd_query_agg_frame_cnt,
1642                          delta_tx->agg.scd_query_agg_frame_cnt,
1643                          max_tx->agg.scd_query_agg_frame_cnt);
1644         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1645                          "agg scd_query_no_agg:",
1646                          le32_to_cpu(tx->agg.scd_query_no_agg),
1647                          accum_tx->agg.scd_query_no_agg,
1648                          delta_tx->agg.scd_query_no_agg,
1649                          max_tx->agg.scd_query_no_agg);
1650         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1651                          "agg scd_query_agg:",
1652                          le32_to_cpu(tx->agg.scd_query_agg),
1653                          accum_tx->agg.scd_query_agg,
1654                          delta_tx->agg.scd_query_agg,
1655                          max_tx->agg.scd_query_agg);
1656         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1657                         "agg scd_query_mismatch:",
1658                          le32_to_cpu(tx->agg.scd_query_mismatch),
1659                          accum_tx->agg.scd_query_mismatch,
1660                          delta_tx->agg.scd_query_mismatch,
1661                          max_tx->agg.scd_query_mismatch);
1662         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1663                          "agg frame_not_ready:",
1664                          le32_to_cpu(tx->agg.frame_not_ready),
1665                          accum_tx->agg.frame_not_ready,
1666                          delta_tx->agg.frame_not_ready,
1667                          max_tx->agg.frame_not_ready);
1668         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1669                          "agg underrun:",
1670                          le32_to_cpu(tx->agg.underrun),
1671                          accum_tx->agg.underrun,
1672                          delta_tx->agg.underrun, max_tx->agg.underrun);
1673         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1674                          "agg bt_prio_kill:",
1675                          le32_to_cpu(tx->agg.bt_prio_kill),
1676                          accum_tx->agg.bt_prio_kill,
1677                          delta_tx->agg.bt_prio_kill,
1678                          max_tx->agg.bt_prio_kill);
1679         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1680                          "agg rx_ba_rsp_cnt:",
1681                          le32_to_cpu(tx->agg.rx_ba_rsp_cnt),
1682                          accum_tx->agg.rx_ba_rsp_cnt,
1683                          delta_tx->agg.rx_ba_rsp_cnt,
1684                          max_tx->agg.rx_ba_rsp_cnt);
1685
1686         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1687         kfree(buf);
1688         return ret;
1689 }
1690
1691 static ssize_t iwl_dbgfs_ucode_general_stats_read(struct file *file,
1692                                         char __user *user_buf,
1693                                         size_t count, loff_t *ppos)
1694 {
1695         struct iwl_priv *priv = file->private_data;
1696         int pos = 0;
1697         char *buf;
1698         int bufsz = sizeof(struct statistics_general) * 10 + 300;
1699         ssize_t ret;
1700         struct statistics_general *general, *accum_general;
1701         struct statistics_general *delta_general, *max_general;
1702         struct statistics_dbg *dbg, *accum_dbg, *delta_dbg, *max_dbg;
1703         struct statistics_div *div, *accum_div, *delta_div, *max_div;
1704
1705         if (!iwl_is_alive(priv))
1706                 return -EAGAIN;
1707
1708         buf = kzalloc(bufsz, GFP_KERNEL);
1709         if (!buf) {
1710                 IWL_ERR(priv, "Can not allocate Buffer\n");
1711                 return -ENOMEM;
1712         }
1713
1714         /* the statistic information display here is based on
1715          * the last statistics notification from uCode
1716          * might not reflect the current uCode activity
1717          */
1718         general = &priv->statistics.general;
1719         dbg = &priv->statistics.general.dbg;
1720         div = &priv->statistics.general.div;
1721         accum_general = &priv->accum_statistics.general;
1722         delta_general = &priv->delta_statistics.general;
1723         max_general = &priv->max_delta.general;
1724         accum_dbg = &priv->accum_statistics.general.dbg;
1725         delta_dbg = &priv->delta_statistics.general.dbg;
1726         max_dbg = &priv->max_delta.general.dbg;
1727         accum_div = &priv->accum_statistics.general.div;
1728         delta_div = &priv->delta_statistics.general.div;
1729         max_div = &priv->max_delta.general.div;
1730         pos += iwl_dbgfs_statistics_flag(priv, buf, bufsz);
1731         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_header,
1732                         "Statistics_General:");
1733         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1734                          "temperature:",
1735                          le32_to_cpu(general->temperature));
1736         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_short_format,
1737                          "temperature_m:",
1738                          le32_to_cpu(general->temperature_m));
1739         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1740                          "burst_check:",
1741                          le32_to_cpu(dbg->burst_check),
1742                          accum_dbg->burst_check,
1743                          delta_dbg->burst_check, max_dbg->burst_check);
1744         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1745                          "burst_count:",
1746                          le32_to_cpu(dbg->burst_count),
1747                          accum_dbg->burst_count,
1748                          delta_dbg->burst_count, max_dbg->burst_count);
1749         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1750                          "sleep_time:",
1751                          le32_to_cpu(general->sleep_time),
1752                          accum_general->sleep_time,
1753                          delta_general->sleep_time, max_general->sleep_time);
1754         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1755                          "slots_out:",
1756                          le32_to_cpu(general->slots_out),
1757                          accum_general->slots_out,
1758                          delta_general->slots_out, max_general->slots_out);
1759         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1760                          "slots_idle:",
1761                          le32_to_cpu(general->slots_idle),
1762                          accum_general->slots_idle,
1763                          delta_general->slots_idle, max_general->slots_idle);
1764         pos += scnprintf(buf + pos, bufsz - pos, "ttl_timestamp:\t\t\t%u\n",
1765                          le32_to_cpu(general->ttl_timestamp));
1766         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1767                          "tx_on_a:",
1768                          le32_to_cpu(div->tx_on_a), accum_div->tx_on_a,
1769                          delta_div->tx_on_a, max_div->tx_on_a);
1770         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1771                          "tx_on_b:",
1772                          le32_to_cpu(div->tx_on_b), accum_div->tx_on_b,
1773                          delta_div->tx_on_b, max_div->tx_on_b);
1774         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1775                          "exec_time:",
1776                          le32_to_cpu(div->exec_time), accum_div->exec_time,
1777                          delta_div->exec_time, max_div->exec_time);
1778         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1779                          "probe_time:",
1780                          le32_to_cpu(div->probe_time), accum_div->probe_time,
1781                          delta_div->probe_time, max_div->probe_time);
1782         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1783                          "rx_enable_counter:",
1784                          le32_to_cpu(general->rx_enable_counter),
1785                          accum_general->rx_enable_counter,
1786                          delta_general->rx_enable_counter,
1787                          max_general->rx_enable_counter);
1788         pos += scnprintf(buf + pos, bufsz - pos, ucode_stats_format,
1789                          "num_of_sos_states:",
1790                          le32_to_cpu(general->num_of_sos_states),
1791                          accum_general->num_of_sos_states,
1792                          delta_general->num_of_sos_states,
1793                          max_general->num_of_sos_states);
1794         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1795         kfree(buf);
1796         return ret;
1797 }
1798
1799 static ssize_t iwl_dbgfs_sensitivity_read(struct file *file,
1800                                         char __user *user_buf,
1801                                         size_t count, loff_t *ppos) {
1802
1803         struct iwl_priv *priv = file->private_data;
1804         int pos = 0;
1805         int cnt = 0;
1806         char *buf;
1807         int bufsz = sizeof(struct iwl_sensitivity_data) * 4 + 100;
1808         ssize_t ret;
1809         struct iwl_sensitivity_data *data;
1810
1811         data = &priv->sensitivity_data;
1812         buf = kzalloc(bufsz, GFP_KERNEL);
1813         if (!buf) {
1814                 IWL_ERR(priv, "Can not allocate Buffer\n");
1815                 return -ENOMEM;
1816         }
1817
1818         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm:\t\t\t %u\n",
1819                         data->auto_corr_ofdm);
1820         pos += scnprintf(buf + pos, bufsz - pos,
1821                         "auto_corr_ofdm_mrc:\t\t %u\n",
1822                         data->auto_corr_ofdm_mrc);
1823         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_ofdm_x1:\t\t %u\n",
1824                         data->auto_corr_ofdm_x1);
1825         pos += scnprintf(buf + pos, bufsz - pos,
1826                         "auto_corr_ofdm_mrc_x1:\t\t %u\n",
1827                         data->auto_corr_ofdm_mrc_x1);
1828         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck:\t\t\t %u\n",
1829                         data->auto_corr_cck);
1830         pos += scnprintf(buf + pos, bufsz - pos, "auto_corr_cck_mrc:\t\t %u\n",
1831                         data->auto_corr_cck_mrc);
1832         pos += scnprintf(buf + pos, bufsz - pos,
1833                         "last_bad_plcp_cnt_ofdm:\t\t %u\n",
1834                         data->last_bad_plcp_cnt_ofdm);
1835         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_ofdm:\t\t %u\n",
1836                         data->last_fa_cnt_ofdm);
1837         pos += scnprintf(buf + pos, bufsz - pos,
1838                         "last_bad_plcp_cnt_cck:\t\t %u\n",
1839                         data->last_bad_plcp_cnt_cck);
1840         pos += scnprintf(buf + pos, bufsz - pos, "last_fa_cnt_cck:\t\t %u\n",
1841                         data->last_fa_cnt_cck);
1842         pos += scnprintf(buf + pos, bufsz - pos, "nrg_curr_state:\t\t\t %u\n",
1843                         data->nrg_curr_state);
1844         pos += scnprintf(buf + pos, bufsz - pos, "nrg_prev_state:\t\t\t %u\n",
1845                         data->nrg_prev_state);
1846         pos += scnprintf(buf + pos, bufsz - pos, "nrg_value:\t\t\t");
1847         for (cnt = 0; cnt < 10; cnt++) {
1848                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1849                                 data->nrg_value[cnt]);
1850         }
1851         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1852         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_rssi:\t\t");
1853         for (cnt = 0; cnt < NRG_NUM_PREV_STAT_L; cnt++) {
1854                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1855                                 data->nrg_silence_rssi[cnt]);
1856         }
1857         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1858         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_ref:\t\t %u\n",
1859                         data->nrg_silence_ref);
1860         pos += scnprintf(buf + pos, bufsz - pos, "nrg_energy_idx:\t\t\t %u\n",
1861                         data->nrg_energy_idx);
1862         pos += scnprintf(buf + pos, bufsz - pos, "nrg_silence_idx:\t\t %u\n",
1863                         data->nrg_silence_idx);
1864         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_cck:\t\t\t %u\n",
1865                         data->nrg_th_cck);
1866         pos += scnprintf(buf + pos, bufsz - pos,
1867                         "nrg_auto_corr_silence_diff:\t %u\n",
1868                         data->nrg_auto_corr_silence_diff);
1869         pos += scnprintf(buf + pos, bufsz - pos, "num_in_cck_no_fa:\t\t %u\n",
1870                         data->num_in_cck_no_fa);
1871         pos += scnprintf(buf + pos, bufsz - pos, "nrg_th_ofdm:\t\t\t %u\n",
1872                         data->nrg_th_ofdm);
1873
1874         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1875         kfree(buf);
1876         return ret;
1877 }
1878
1879
1880 static ssize_t iwl_dbgfs_chain_noise_read(struct file *file,
1881                                         char __user *user_buf,
1882                                         size_t count, loff_t *ppos) {
1883
1884         struct iwl_priv *priv = file->private_data;
1885         int pos = 0;
1886         int cnt = 0;
1887         char *buf;
1888         int bufsz = sizeof(struct iwl_chain_noise_data) * 4 + 100;
1889         ssize_t ret;
1890         struct iwl_chain_noise_data *data;
1891
1892         data = &priv->chain_noise_data;
1893         buf = kzalloc(bufsz, GFP_KERNEL);
1894         if (!buf) {
1895                 IWL_ERR(priv, "Can not allocate Buffer\n");
1896                 return -ENOMEM;
1897         }
1898
1899         pos += scnprintf(buf + pos, bufsz - pos, "active_chains:\t\t\t %u\n",
1900                         data->active_chains);
1901         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_a:\t\t\t %u\n",
1902                         data->chain_noise_a);
1903         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_b:\t\t\t %u\n",
1904                         data->chain_noise_b);
1905         pos += scnprintf(buf + pos, bufsz - pos, "chain_noise_c:\t\t\t %u\n",
1906                         data->chain_noise_c);
1907         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_a:\t\t\t %u\n",
1908                         data->chain_signal_a);
1909         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_b:\t\t\t %u\n",
1910                         data->chain_signal_b);
1911         pos += scnprintf(buf + pos, bufsz - pos, "chain_signal_c:\t\t\t %u\n",
1912                         data->chain_signal_c);
1913         pos += scnprintf(buf + pos, bufsz - pos, "beacon_count:\t\t\t %u\n",
1914                         data->beacon_count);
1915
1916         pos += scnprintf(buf + pos, bufsz - pos, "disconn_array:\t\t\t");
1917         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1918                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1919                                 data->disconn_array[cnt]);
1920         }
1921         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1922         pos += scnprintf(buf + pos, bufsz - pos, "delta_gain_code:\t\t");
1923         for (cnt = 0; cnt < NUM_RX_CHAINS; cnt++) {
1924                 pos += scnprintf(buf + pos, bufsz - pos, " %u",
1925                                 data->delta_gain_code[cnt]);
1926         }
1927         pos += scnprintf(buf + pos, bufsz - pos, "\n");
1928         pos += scnprintf(buf + pos, bufsz - pos, "radio_write:\t\t\t %u\n",
1929                         data->radio_write);
1930         pos += scnprintf(buf + pos, bufsz - pos, "state:\t\t\t\t %u\n",
1931                         data->state);
1932
1933         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1934         kfree(buf);
1935         return ret;
1936 }
1937
1938 static ssize_t iwl_dbgfs_tx_power_read(struct file *file,
1939                                         char __user *user_buf,
1940                                         size_t count, loff_t *ppos) {
1941
1942         struct iwl_priv *priv = file->private_data;
1943         char buf[128];
1944         int pos = 0;
1945         const size_t bufsz = sizeof(buf);
1946         struct statistics_tx *tx;
1947
1948         if (!iwl_is_alive(priv))
1949                 pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1950         else {
1951                 tx = &priv->statistics.tx;
1952                 if (tx->tx_power.ant_a ||
1953                     tx->tx_power.ant_b ||
1954                     tx->tx_power.ant_c) {
1955                         pos += scnprintf(buf + pos, bufsz - pos,
1956                                 "tx power: (1/2 dB step)\n");
1957                         if ((priv->cfg->valid_tx_ant & ANT_A) &&
1958                             tx->tx_power.ant_a)
1959                                 pos += scnprintf(buf + pos, bufsz - pos,
1960                                                 "\tantenna A: 0x%X\n",
1961                                                 tx->tx_power.ant_a);
1962                         if ((priv->cfg->valid_tx_ant & ANT_B) &&
1963                             tx->tx_power.ant_b)
1964                                 pos += scnprintf(buf + pos, bufsz - pos,
1965                                                 "\tantenna B: 0x%X\n",
1966                                                 tx->tx_power.ant_b);
1967                         if ((priv->cfg->valid_tx_ant & ANT_C) &&
1968                             tx->tx_power.ant_c)
1969                                 pos += scnprintf(buf + pos, bufsz - pos,
1970                                                 "\tantenna C: 0x%X\n",
1971                                                 tx->tx_power.ant_c);
1972                 } else
1973                         pos += scnprintf(buf + pos, bufsz - pos, "N/A\n");
1974         }
1975         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1976 }
1977
1978 static ssize_t iwl_dbgfs_power_save_status_read(struct file *file,
1979                                                     char __user *user_buf,
1980                                                     size_t count, loff_t *ppos)
1981 {
1982         struct iwl_priv *priv = file->private_data;
1983         char buf[60];
1984         int pos = 0;
1985         const size_t bufsz = sizeof(buf);
1986         u32 pwrsave_status;
1987
1988         pwrsave_status = iwl_read32(priv, CSR_GP_CNTRL) &
1989                         CSR_GP_REG_POWER_SAVE_STATUS_MSK;
1990
1991         pos += scnprintf(buf + pos, bufsz - pos, "Power Save Status: ");
1992         pos += scnprintf(buf + pos, bufsz - pos, "%s\n",
1993                 (pwrsave_status == CSR_GP_REG_NO_POWER_SAVE) ? "none" :
1994                 (pwrsave_status == CSR_GP_REG_MAC_POWER_SAVE) ? "MAC" :
1995                 (pwrsave_status == CSR_GP_REG_PHY_POWER_SAVE) ? "PHY" :
1996                 "error");
1997
1998         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
1999 }
2000
2001 static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file,
2002                                          const char __user *user_buf,
2003                                          size_t count, loff_t *ppos)
2004 {
2005         struct iwl_priv *priv = file->private_data;
2006         char buf[8];
2007         int buf_size;
2008         int clear;
2009
2010         memset(buf, 0, sizeof(buf));
2011         buf_size = min(count, sizeof(buf) -  1);
2012         if (copy_from_user(buf, user_buf, buf_size))
2013                 return -EFAULT;
2014         if (sscanf(buf, "%d", &clear) != 1)
2015                 return -EFAULT;
2016
2017         /* make request to uCode to retrieve statistics information */
2018         mutex_lock(&priv->mutex);
2019         iwl_send_statistics_request(priv, CMD_SYNC, true);
2020         mutex_unlock(&priv->mutex);
2021
2022         return count;
2023 }
2024
2025 static ssize_t iwl_dbgfs_csr_write(struct file *file,
2026                                          const char __user *user_buf,
2027                                          size_t count, loff_t *ppos)
2028 {
2029         struct iwl_priv *priv = file->private_data;
2030         char buf[8];
2031         int buf_size;
2032         int csr;
2033
2034         memset(buf, 0, sizeof(buf));
2035         buf_size = min(count, sizeof(buf) -  1);
2036         if (copy_from_user(buf, user_buf, buf_size))
2037                 return -EFAULT;
2038         if (sscanf(buf, "%d", &csr) != 1)
2039                 return -EFAULT;
2040
2041         if (priv->cfg->ops->lib->dump_csr)
2042                 priv->cfg->ops->lib->dump_csr(priv);
2043
2044         return count;
2045 }
2046
2047 static ssize_t iwl_dbgfs_ucode_tracing_read(struct file *file,
2048                                         char __user *user_buf,
2049                                         size_t count, loff_t *ppos) {
2050
2051         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2052         int pos = 0;
2053         char buf[128];
2054         const size_t bufsz = sizeof(buf);
2055         ssize_t ret;
2056
2057         pos += scnprintf(buf + pos, bufsz - pos, "ucode trace timer is %s\n",
2058                         priv->event_log.ucode_trace ? "On" : "Off");
2059         pos += scnprintf(buf + pos, bufsz - pos, "non_wraps_count:\t\t %u\n",
2060                         priv->event_log.non_wraps_count);
2061         pos += scnprintf(buf + pos, bufsz - pos, "wraps_once_count:\t\t %u\n",
2062                         priv->event_log.wraps_once_count);
2063         pos += scnprintf(buf + pos, bufsz - pos, "wraps_more_count:\t\t %u\n",
2064                         priv->event_log.wraps_more_count);
2065
2066         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2067         return ret;
2068 }
2069
2070 static ssize_t iwl_dbgfs_ucode_tracing_write(struct file *file,
2071                                          const char __user *user_buf,
2072                                          size_t count, loff_t *ppos)
2073 {
2074         struct iwl_priv *priv = file->private_data;
2075         char buf[8];
2076         int buf_size;
2077         int trace;
2078
2079         memset(buf, 0, sizeof(buf));
2080         buf_size = min(count, sizeof(buf) -  1);
2081         if (copy_from_user(buf, user_buf, buf_size))
2082                 return -EFAULT;
2083         if (sscanf(buf, "%d", &trace) != 1)
2084                 return -EFAULT;
2085
2086         if (trace) {
2087                 priv->event_log.ucode_trace = true;
2088                 /* schedule the ucode timer to occur in UCODE_TRACE_PERIOD */
2089                 mod_timer(&priv->ucode_trace,
2090                         jiffies + msecs_to_jiffies(UCODE_TRACE_PERIOD));
2091         } else {
2092                 priv->event_log.ucode_trace = false;
2093                 del_timer_sync(&priv->ucode_trace);
2094         }
2095
2096         return count;
2097 }
2098
2099 static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
2100                                          char __user *user_buf,
2101                                          size_t count, loff_t *ppos)
2102 {
2103         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2104         char *buf;
2105         int pos = 0;
2106         ssize_t ret = -EFAULT;
2107
2108         if (priv->cfg->ops->lib->dump_fh) {
2109                 ret = pos = priv->cfg->ops->lib->dump_fh(priv, &buf, true);
2110                 if (buf) {
2111                         ret = simple_read_from_buffer(user_buf,
2112                                                       count, ppos, buf, pos);
2113                         kfree(buf);
2114                 }
2115         }
2116
2117         return ret;
2118 }
2119
2120 static ssize_t iwl_dbgfs_missed_beacon_read(struct file *file,
2121                                         char __user *user_buf,
2122                                         size_t count, loff_t *ppos) {
2123
2124         struct iwl_priv *priv = file->private_data;
2125         int pos = 0;
2126         char buf[12];
2127         const size_t bufsz = sizeof(buf);
2128         ssize_t ret;
2129
2130         pos += scnprintf(buf + pos, bufsz - pos, "%d\n",
2131                         priv->missed_beacon_threshold);
2132
2133         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2134         return ret;
2135 }
2136
2137 static ssize_t iwl_dbgfs_missed_beacon_write(struct file *file,
2138                                          const char __user *user_buf,
2139                                          size_t count, loff_t *ppos)
2140 {
2141         struct iwl_priv *priv = file->private_data;
2142         char buf[8];
2143         int buf_size;
2144         int missed;
2145
2146         memset(buf, 0, sizeof(buf));
2147         buf_size = min(count, sizeof(buf) -  1);
2148         if (copy_from_user(buf, user_buf, buf_size))
2149                 return -EFAULT;
2150         if (sscanf(buf, "%d", &missed) != 1)
2151                 return -EINVAL;
2152
2153         if (missed < IWL_MISSED_BEACON_THRESHOLD_MIN ||
2154             missed > IWL_MISSED_BEACON_THRESHOLD_MAX)
2155                 priv->missed_beacon_threshold =
2156                         IWL_MISSED_BEACON_THRESHOLD_DEF;
2157         else
2158                 priv->missed_beacon_threshold = missed;
2159
2160         return count;
2161 }
2162
2163 static ssize_t iwl_dbgfs_internal_scan_write(struct file *file,
2164                                          const char __user *user_buf,
2165                                          size_t count, loff_t *ppos)
2166 {
2167         struct iwl_priv *priv = file->private_data;
2168         char buf[8];
2169         int buf_size;
2170         int scan;
2171
2172         memset(buf, 0, sizeof(buf));
2173         buf_size = min(count, sizeof(buf) -  1);
2174         if (copy_from_user(buf, user_buf, buf_size))
2175                 return -EFAULT;
2176         if (sscanf(buf, "%d", &scan) != 1)
2177                 return -EINVAL;
2178
2179         iwl_internal_short_hw_scan(priv);
2180
2181         return count;
2182 }
2183
2184 static ssize_t iwl_dbgfs_plcp_delta_read(struct file *file,
2185                                         char __user *user_buf,
2186                                         size_t count, loff_t *ppos) {
2187
2188         struct iwl_priv *priv = (struct iwl_priv *)file->private_data;
2189         int pos = 0;
2190         char buf[12];
2191         const size_t bufsz = sizeof(buf);
2192         ssize_t ret;
2193
2194         pos += scnprintf(buf + pos, bufsz - pos, "%u\n",
2195                         priv->cfg->plcp_delta_threshold);
2196
2197         ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2198         return ret;
2199 }
2200
2201 static ssize_t iwl_dbgfs_plcp_delta_write(struct file *file,
2202                                         const char __user *user_buf,
2203                                         size_t count, loff_t *ppos) {
2204
2205         struct iwl_priv *priv = file->private_data;
2206         char buf[8];
2207         int buf_size;
2208         int plcp;
2209
2210         memset(buf, 0, sizeof(buf));
2211         buf_size = min(count, sizeof(buf) -  1);
2212         if (copy_from_user(buf, user_buf, buf_size))
2213                 return -EFAULT;
2214         if (sscanf(buf, "%d", &plcp) != 1)
2215                 return -EINVAL;
2216         if ((plcp <= IWL_MAX_PLCP_ERR_THRESHOLD_MIN) ||
2217                 (plcp > IWL_MAX_PLCP_ERR_THRESHOLD_MAX))
2218                 priv->cfg->plcp_delta_threshold =
2219                         IWL_MAX_PLCP_ERR_THRESHOLD_DEF;
2220         else
2221                 priv->cfg->plcp_delta_threshold = plcp;
2222         return count;
2223 }
2224
2225 static ssize_t iwl_dbgfs_force_reset_read(struct file *file,
2226                                         char __user *user_buf,
2227                                         size_t count, loff_t *ppos) {
2228
2229         struct iwl_priv *priv = file->private_data;
2230         int i, pos = 0;
2231         char buf[300];
2232         const size_t bufsz = sizeof(buf);
2233         struct iwl_force_reset *force_reset;
2234
2235         for (i = 0; i < IWL_MAX_FORCE_RESET; i++) {
2236                 force_reset = &priv->force_reset[i];
2237                 pos += scnprintf(buf + pos, bufsz - pos,
2238                                 "Force reset method %d\n", i);
2239                 pos += scnprintf(buf + pos, bufsz - pos,
2240                                 "\tnumber of reset request: %d\n",
2241                                 force_reset->reset_request_count);
2242                 pos += scnprintf(buf + pos, bufsz - pos,
2243                                 "\tnumber of reset request success: %d\n",
2244                                 force_reset->reset_success_count);
2245                 pos += scnprintf(buf + pos, bufsz - pos,
2246                                 "\tnumber of reset request reject: %d\n",
2247                                 force_reset->reset_reject_count);
2248                 pos += scnprintf(buf + pos, bufsz - pos,
2249                                 "\treset duration: %lu\n",
2250                                 force_reset->reset_duration);
2251         }
2252         return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
2253 }
2254
2255 static ssize_t iwl_dbgfs_force_reset_write(struct file *file,
2256                                         const char __user *user_buf,
2257                                         size_t count, loff_t *ppos) {
2258
2259         struct iwl_priv *priv = file->private_data;
2260         char buf[8];
2261         int buf_size;
2262         int reset, ret;
2263
2264         memset(buf, 0, sizeof(buf));
2265         buf_size = min(count, sizeof(buf) -  1);
2266         if (copy_from_user(buf, user_buf, buf_size))
2267                 return -EFAULT;
2268         if (sscanf(buf, "%d", &reset) != 1)
2269                 return -EINVAL;
2270         switch (reset) {
2271         case IWL_RF_RESET:
2272         case IWL_FW_RESET:
2273                 ret = iwl_force_reset(priv, reset);
2274                 break;
2275         default:
2276                 return -EINVAL;
2277         }
2278         return ret ? ret : count;
2279 }
2280
2281 DEBUGFS_READ_FILE_OPS(rx_statistics);
2282 DEBUGFS_READ_FILE_OPS(tx_statistics);
2283 DEBUGFS_READ_WRITE_FILE_OPS(traffic_log);
2284 DEBUGFS_READ_FILE_OPS(rx_queue);
2285 DEBUGFS_READ_FILE_OPS(tx_queue);
2286 DEBUGFS_READ_FILE_OPS(ucode_rx_stats);
2287 DEBUGFS_READ_FILE_OPS(ucode_tx_stats);
2288 DEBUGFS_READ_FILE_OPS(ucode_general_stats);
2289 DEBUGFS_READ_FILE_OPS(sensitivity);
2290 DEBUGFS_READ_FILE_OPS(chain_noise);
2291 DEBUGFS_READ_FILE_OPS(tx_power);
2292 DEBUGFS_READ_FILE_OPS(power_save_status);
2293 DEBUGFS_WRITE_FILE_OPS(clear_ucode_statistics);
2294 DEBUGFS_WRITE_FILE_OPS(clear_traffic_statistics);
2295 DEBUGFS_WRITE_FILE_OPS(csr);
2296 DEBUGFS_READ_WRITE_FILE_OPS(ucode_tracing);
2297 DEBUGFS_READ_FILE_OPS(fh_reg);
2298 DEBUGFS_READ_WRITE_FILE_OPS(missed_beacon);
2299 DEBUGFS_WRITE_FILE_OPS(internal_scan);
2300 DEBUGFS_READ_WRITE_FILE_OPS(plcp_delta);
2301 DEBUGFS_READ_WRITE_FILE_OPS(force_reset);
2302
2303 /*
2304  * Create the debugfs files and directories
2305  *
2306  */
2307 int iwl_dbgfs_register(struct iwl_priv *priv, const char *name)
2308 {
2309         struct dentry *phyd = priv->hw->wiphy->debugfsdir;
2310         struct dentry *dir_drv, *dir_data, *dir_rf, *dir_debug;
2311
2312         dir_drv = debugfs_create_dir(name, phyd);
2313         if (!dir_drv)
2314                 return -ENOMEM;
2315
2316         priv->debugfs_dir = dir_drv;
2317
2318         dir_data = debugfs_create_dir("data", dir_drv);
2319         if (!dir_data)
2320                 goto err;
2321         dir_rf = debugfs_create_dir("rf", dir_drv);
2322         if (!dir_rf)
2323                 goto err;
2324         dir_debug = debugfs_create_dir("debug", dir_drv);
2325         if (!dir_debug)
2326                 goto err;
2327
2328         DEBUGFS_ADD_FILE(nvm, dir_data, S_IRUSR);
2329         DEBUGFS_ADD_FILE(sram, dir_data, S_IWUSR | S_IRUSR);
2330         DEBUGFS_ADD_FILE(log_event, dir_data, S_IWUSR | S_IRUSR);
2331         DEBUGFS_ADD_FILE(stations, dir_data, S_IRUSR);
2332         DEBUGFS_ADD_FILE(channels, dir_data, S_IRUSR);
2333         DEBUGFS_ADD_FILE(status, dir_data, S_IRUSR);
2334         DEBUGFS_ADD_FILE(interrupt, dir_data, S_IWUSR | S_IRUSR);
2335         DEBUGFS_ADD_FILE(qos, dir_data, S_IRUSR);
2336         DEBUGFS_ADD_FILE(led, dir_data, S_IRUSR);
2337         DEBUGFS_ADD_FILE(sleep_level_override, dir_data, S_IWUSR | S_IRUSR);
2338         DEBUGFS_ADD_FILE(current_sleep_command, dir_data, S_IRUSR);
2339         DEBUGFS_ADD_FILE(thermal_throttling, dir_data, S_IRUSR);
2340         DEBUGFS_ADD_FILE(disable_ht40, dir_data, S_IWUSR | S_IRUSR);
2341         DEBUGFS_ADD_FILE(rx_statistics, dir_debug, S_IRUSR);
2342         DEBUGFS_ADD_FILE(tx_statistics, dir_debug, S_IRUSR);
2343         DEBUGFS_ADD_FILE(traffic_log, dir_debug, S_IWUSR | S_IRUSR);
2344         DEBUGFS_ADD_FILE(rx_queue, dir_debug, S_IRUSR);
2345         DEBUGFS_ADD_FILE(tx_queue, dir_debug, S_IRUSR);
2346         DEBUGFS_ADD_FILE(tx_power, dir_debug, S_IRUSR);
2347         DEBUGFS_ADD_FILE(power_save_status, dir_debug, S_IRUSR);
2348         DEBUGFS_ADD_FILE(clear_ucode_statistics, dir_debug, S_IWUSR);
2349         DEBUGFS_ADD_FILE(clear_traffic_statistics, dir_debug, S_IWUSR);
2350         DEBUGFS_ADD_FILE(csr, dir_debug, S_IWUSR);
2351         DEBUGFS_ADD_FILE(fh_reg, dir_debug, S_IRUSR);
2352         DEBUGFS_ADD_FILE(missed_beacon, dir_debug, S_IWUSR);
2353         DEBUGFS_ADD_FILE(internal_scan, dir_debug, S_IWUSR);
2354         DEBUGFS_ADD_FILE(plcp_delta, dir_debug, S_IWUSR | S_IRUSR);
2355         DEBUGFS_ADD_FILE(force_reset, dir_debug, S_IWUSR | S_IRUSR);
2356         if ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) != CSR_HW_REV_TYPE_3945) {
2357                 DEBUGFS_ADD_FILE(ucode_rx_stats, dir_debug, S_IRUSR);
2358                 DEBUGFS_ADD_FILE(ucode_tx_stats, dir_debug, S_IRUSR);
2359                 DEBUGFS_ADD_FILE(ucode_general_stats, dir_debug, S_IRUSR);
2360                 DEBUGFS_ADD_FILE(sensitivity, dir_debug, S_IRUSR);
2361                 DEBUGFS_ADD_FILE(chain_noise, dir_debug, S_IRUSR);
2362                 DEBUGFS_ADD_FILE(ucode_tracing, dir_debug, S_IWUSR | S_IRUSR);
2363         }
2364         DEBUGFS_ADD_BOOL(disable_sensitivity, dir_rf, &priv->disable_sens_cal);
2365         DEBUGFS_ADD_BOOL(disable_chain_noise, dir_rf,
2366                          &priv->disable_chain_noise_cal);
2367         if (((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_4965) ||
2368             ((priv->hw_rev & CSR_HW_REV_TYPE_MSK) == CSR_HW_REV_TYPE_3945))
2369                 DEBUGFS_ADD_BOOL(disable_tx_power, dir_rf,
2370                                 &priv->disable_tx_power_cal);
2371         return 0;
2372
2373 err:
2374         IWL_ERR(priv, "Can't create the debugfs directory\n");
2375         iwl_dbgfs_unregister(priv);
2376         return -ENOMEM;
2377 }
2378 EXPORT_SYMBOL(iwl_dbgfs_register);
2379
2380 /**
2381  * Remove the debugfs files and directories
2382  *
2383  */
2384 void iwl_dbgfs_unregister(struct iwl_priv *priv)
2385 {
2386         if (!priv->debugfs_dir)
2387                 return;
2388
2389         debugfs_remove_recursive(priv->debugfs_dir);
2390         priv->debugfs_dir = NULL;
2391 }
2392 EXPORT_SYMBOL(iwl_dbgfs_unregister);
2393
2394
2395